Practice: The position-time graph for a moving box is shown below.

(a) What is the box’s velocity from 0 to 5s?

(b) What is the box’s velocity from 0 to 8s?

(c) What is the box’s velocity in the interval where it’s moving fastest?

Subjects

Sections | |||
---|---|---|---|

Vectors, Scalars, & Displacement | 14 mins | 0 completed | Learn |

Average Velocity | 33 mins | 0 completed | Learn |

Intro to Acceleration | 8 mins | 0 completed | Learn |

Position-Time Graphs & Velocity | 26 mins | 0 completed | Learn |

Conceptual Problems with Position-Time Graphs | 22 mins | 0 completed | Learn |

Velocity-Time Graphs & Acceleration | 6 mins | 0 completed | Learn |

Calculating Displacement from Velocity-Time Graphs | 15 mins | 0 completed | Learn |

Conceptual Problems with Velocity-Time Graphs | 11 mins | 0 completed | Learn |

Calculating Change in Velocity from Acceleration-Time Graphs | 11 mins | 0 completed | Learn |

Graphing Position, Velocity, and Acceleration Graphs | 11 mins | 0 completed | Learn |

Kinematics Equations | 53 mins | 0 completed | Learn |

Vertical Motion and Free Fall | 20 mins | 0 completed | Learn |

Catch/Overtake Problems | 23 mins | 0 completed | Learn |

Additional Practice |
---|

Motion Diagrams |

Proportional Reasoning |

Practice: The position-time graph for a moving box is shown below.

(a) What is the box’s velocity from 0 to 5s?

(b) What is the box’s velocity from 0 to 8s?

(c) What is the box’s velocity in the interval where it’s moving fastest?

Practice: The position-time graph for a ball on a track is shown below.

(a) What is the ball’s velocity from 0 to 4s?

(b) What is the ball’s velocity at 4s?

(c) From t = 3 to 7s, is the ball accelerating forwards or backwards?

0 of 5 completed

The figure shows a graph of position vs. time. Which section of the graph corresponds to the highest speed?
A) A
B) B
C) C
D) D
E) E

What is the velocity in section A?
v =

A physics professor leaves her house and walks along the sidewalk toward campus. After 5 minutes it starts to rain and she returns home. Her distance from her house as a function of time is shown in the figure. At which of the labeled points is her velocity...(a) Zero?(b) Constant and positive?(c) Constant and negative?(d) Increasing in magnitude?(e) Decreasing in magnitude?

A test car travels in a straight line along the x-axis. The graph in Fig. E2.11 shows the car’s position x as a function of time. Find its instantaneous velocity at points A through G.

The figure shows a graph of actual position-versus-time data for a particular type of drag racer known as a "funny car." (Figure 1)Figure 1 of 1Part AEstimate the car's velocity at 2.0 s.Express your answer to one significant figure and include the appropriate units.Part BEstimate the car's velocity at 4.0 s.Express your answer to two significant figures and include the appropriate units.

Two cars travel on the parallel lanes of a two-lane road. The cars' motions are represented by the position versus time graph shown in the figure. Answer the questions using the times from the graph indicated by letters.(a) At which of the times do the two cars pass each other?(b) Are the two cars traveling in the same direction when they pass each other?A) yesB) no(c) At which of the lettered times, if any, does car #1 momentarily stop?(d) At which of the lettered times, if any, does car #2 momentarily stop?(e) At which of the lettered times are the cars moving with nearly identical velocity?

1. At which lettered point or points is the object moving the fastest? A, B, C, D, E or F 2. At which lettered point or points is the object moving to the left? A, B, C, D, E or F 3. At which lettered point or points is the object speeding up? A, B, C, D, E or F 4. At which lettered point or points is the object turning around?

Questions go with graph:1. Its speed at point 1 is less than the speed at point 4. true or false?2. Where is its x-component of velocity zero for only a moment? A. 5 B. 6 C. 1 D. 2 E. 3 F. 4

An object moves along the x axis during four separate trials. Graphs of position versus time for each trial are shown in the figure.a) During which trial or trials is the object's velocity not constant?b) During which trial or trials is the magnitude of the average velocity the largest?

The motions described in each of the questions take place at an intersection on a two-lane road with a stop sign in each direction. For each motion, select the correct position versus time graph. For all of the motions, the stop sign is at the position x = 0, and east is the positive x-direction. (Figure 1)Part A. A driver, traveling west, slows and stops at the stop sign.Part B. A driver, after stopping at the stop sign, accelerates to the east.

The motions described in each of the questions take place at an intersection on a two-lane road with a stop sign in each direction. For each motion, select the correct position versus time graph. For all of the motions, the stop sign is at the position x = 0, and east is the positive x-direction. (Figure 1)Part A. A driver ignores the stop sign and continues driving east at constant speed.Part B. A driver ignores the stop sign and continues driving west at constant speed.

Part a. What is the overall displacement Δx of the particle?Part b. What is the average velocity vav of the particle over the time interval Δt = 50.0s?Part c. What is the instantaneous velocity v of the particle at t=10.0s?

The position of a rabbit along a straight tunnel as a function of time is plotted in the figure.a.) What is its average velocity between t = 0 and t = 5.0s?b.) What is its average velocity between t = 25.0s and t = 30.0s?c.) What is its average velocity between t = 40.0s and t = 50.0s?

a) What is the bicyclist's velocity at t=10s?Express your answer using two significant figures.b) What is the bicyclist's velocity at t=25s?Express your answer using two significant figures.c) What is the bicyclist's velocity at t=35s?Express your answer using two significant figures.

Part A Find the object's positions x1, x2, x3, and x4 at times t1 = 2.0 s, t2 = 4.0 s, t3 = 13 s, and t4 = 17 s. Express your answer in meters to one significant figures, separated by commas. Part BFind the object's speeds v1, v2, and v3 at times t1 = 2.0 s, t2 = 4.0 s, and t3 = 13 s.Express your answers in meters per second to two significant figures, separated by commas.

A mass attached to a spring oscillator back and forth as indicated in the position vs. time plot below. At point P,1. the x-component of the velocity is negative and the x-component of the acceleration is positive.2. the x-component of the velocity is negative and the x-component of the acceleration is negative.3. the x-component of the velocity is zero and the x-component of the acceleration is zero.4. the x-component of the velocity is positive and the x-component of the acceleration is positive.5. the x-component of the velocity is positive and the x-component of the acceleration is negative.

Figure 1:Figure 2:Shown in the figure is the v vs. t curve selected in the previous part. What is the area A of the shaded region under the curve?

What is the average velocity vav of the particle over the time interval Δt=50.0 s ?

For this experiment, the x-coordinate of the cart is defined asA. the length of the cart. B. all answers are correct. C. the distance the cart moves in one second. D. the reading on a tape measure attached to the track. The end of the cart opposite the motion sensor defines the cart's x-coordinate. E. the reading on a tape measure attached to the track. The end of the cart facing the motion sensor defines the cart's x-coordinate.

(Figure 1) shows a history graph at x = 0 cm of a wave moving to the left at 1 cm/s.What is the snapshot graph of this wave at t = 1 s?

The figure shows the trajectory of a golf ball in projectile motion over level ground. The time t0 = 0 s corresponds to the moment just after the ball is launched from position x0 = 0 m, y0 = 0 m. Its initial velocity (launch velocity) is v0. Two other points along the trajectory are indicated in the figure. At time t1 (with velocity v1), the ball reaches the peak of its trajectory. Its position at this moment is denoted by (x1,y1) or (x1,ymax), since it is at its maximum height. At time t2 (with velocity v2), just before the ball touches the ground again, its position is (x2,y2) or (xmax,y2), since it is at its maximum horizontal range.How do the speeds v0, v1, and v2 (at times t0, t1, and t2) compare?

The speed at point 1 is less than the speed at point 2.a. Trueb. False

The slope at a point on a position-versus-time graph of an object is a. The object's speed at that point. b. The object's average velocity at that point. c. The object's instantaneous velocity at that point. d. The object's acceleration at that point. e. The distance traveled by the object to that point.

Two cars traveling on the parallel lanes of a two-lane road. The cars' motions are represented by the position versus time graph shown in the figure. Answer the questions using the times from the graph indicated by letters.A. At which of the times do the two cars pass each other?B. At which of the lettered times, if any. does car #1 momentarily stop?C. At which of the lettered times, if any, does car #2 momentarily stop?D. At which of the lettered times are the cars moving with nearly identical velocity?

The position graph of the figure shows a dog slowly sneaking up on a squirrel, then putting on a burst of speed.For how many seconds does the dog move at the slower speed? (1 sigfig with appropriate units)

The figure below shows the position-versus-time graph for a moving object. At which lettered point(s):(a) Is the object moving the slowest?(b) Is the object moving the fastest?(c) Is the object at rest?(d) Is the object moving to the left?

Where is the x-component of velocity zero for only a moment?a) 1b) 2c) 4d) 5e) 3f) 6

The position of a rabbit along a straight tunnel as a function of time is plotted in the figure.a.) What is its instantaneous velocity at t = 10.0s?b.) What is its instantaneous velocity at t = 30.0s?

The figure is the position-versus-time graph of a jogger.A. What is the jogger’s velocity at t = 10 s? B. What is the jogger’s velocity at t = 25 s? C. What is the jogger’s velocity at t = 35 s?

Find the object's speeds v1, v2, and v3 at times t1 = 2.0 s, t2 = 4.0 s, and t3 = 13 s. Express your answers in meters per second to two significant figures, separated by commas.

What is the x-component of the velocity (in m/s) for the object having the x(t) graph shown above?

Enter your friends' email addresses to invite them:

We invited your friends!

Join **thousands** of students and gain free access to **55 hours** of Physics videos that follow the topics **your textbook** covers.