Ch 02: 1D Motion (Kinematics)See all chapters
All Chapters
Ch 01: Units & Vectors
Ch 02: 1D Motion (Kinematics)
Ch 03: 2D Motion (Projectile Motion)
Ch 04: Intro to Forces (Dynamics)
Ch 05: Friction, Inclines, Systems
Ch 06: Centripetal Forces & Gravitation
Ch 07: Work & Energy
Ch 08: Conservation of Energy
Ch 09: Momentum & Impulse
Ch 10: Rotational Kinematics
Ch 11: Rotational Inertia & Energy
Ch 12: Torque & Rotational Dynamics
Ch 13: Rotational Equilibrium
Ch 14: Angular Momentum
Ch 15: Periodic Motion (NEW)
Ch 15: Periodic Motion (Oscillations)
Ch 16: Waves & Sound
Ch 17: Fluid Mechanics
Ch 18: Heat and Temperature
Ch 19: Kinetic Theory of Ideal Gasses
Ch 20: The First Law of Thermodynamics
Ch 21: The Second Law of Thermodynamics
Ch 22: Electric Force & Field; Gauss' Law
Ch 23: Electric Potential
Ch 24: Capacitors & Dielectrics
Ch 25: Resistors & DC Circuits
Ch 26: Magnetic Fields and Forces
Ch 27: Sources of Magnetic Field
Ch 28: Induction and Inductance
Ch 29: Alternating Current
Ch 30: Electromagnetic Waves
Ch 31: Geometric Optics
Ch 32: Wave Optics
Ch 34: Special Relativity
Ch 35: Particle-Wave Duality
Ch 36: Atomic Structure
Ch 37: Nuclear Physics
Ch 38: Quantum Mechanics

Concept #1: Intro to Meet/Catch Problems

Concept #2: Meet/Catch Problems (Practice Intro)

Practice: Two horny teenagers run towards each another. The guy, initially at the bar, runs with 5 m/s. The girl runs from 60 m away from the bar with 4 m/s. How long does it take for them to meet?

Practice: In a race, your friend takes off with 3 m/s^2. You take off 2 seconds later with 4 m/s^2. How far into the race will you catch up to him?

Additional Problems
A motorist traveling at a constant velocity of 20 m/s passes a school-crossing corner where the speed limit is 10 m/s (about 22 mi/h). A police officer on a motorcycle stopped at the corner starts off in pursuit with constant acceleration of 2.5 m/s2. What is the officer's speed when she catches up with the car?
A motorist traveling at a constant velocity of 20 m/s passes a school-crossing corner where the speed limit is 10 m/s (about 22 mi/h). A police officer on a motorcycle stopped at the corner starts off in pursuit with constant acceleration of 2.5 m/s2. What is the total distance the officer has traveled at the point he catches the motorist?
A 1/4 mile drag race is going to occur between a Porsche GT3 and a Ferrari F430. The Porsche is the faster car, able to accelerate across a 1/4 mile at about 6.5 m/s2, which the Ferrari can only accelerate across the same stretch at about 5.8 m/s2. At the start of the drag race, though, the driver of the Ferrari gets off the line faster than the Porsche, by about 0.5 s. Is this enough of a head start for the Ferrari to win? Note that 1/4 mile is about 400 m.
A car capable of a constant acceleration of 2.64 m/s2 is stopped at a traffic light. When the light turns green, the car starts from rest with this acceleration. At the very same moment, a truck traveling with constant velocity 17.3 m/s passes the car. As the car’s velocity increases, it will eventually move faster than the truck and later overtake it. How far from the light will the car catch up with the truck? 1. 171.127 2. 43.6985 3. 116.654 4. 131.742 5. 210.032 6. 162.959 7. 259.102 8. 53.2193 9. 226.735 10. 323.646
Two cars, an Acura and a Bentley, are initially at rest a distance L from each other. At time t = 0 both cars starts accelerating toward each other with constant acceleration aA and aB respectively. a) At what time does the crash happen? b) Find the distance traveled by the Bentley before the two cars crash into each other. c) What is the relative speed of the Bentley, with respect to the Acura, just before the crash? Write your results in terms of L, a A, and aB. Remember to check the dimensions/units for each answer.
A top fuel dragster and a Bugatti Veyron race in a short straight line drag race. At the start of the race the top fuelers is standing still waiting for the Bugatti to show up. The race starts when the Bugatti crosses the starting line at its top speed of 400 km per hour. At that instant, the top fuel driver accelerates to 4.5 gs and continues to do so for the entirety of the race. How long will it take the top fueler catch the Bugatti?
While driving on the highway at a constant speed v0, significantly above the speed limit, you pass in front of a parked police car without noticing it. After a few seconds, during which time you have moved a distance d, the police car starts chasing you with a constant acceleration a0. Give your answers in terms of v 0, d, and a0. Assuming that you keep moving at a constant speed, and that the highway can be considered straight:[a] How long will it take for the police car to reach you?[b] How far has the police car traveled when it reaches you?[c] What is the speed of the police car when it reaches you?