Velocity-Time Graphs & Acceleration Video Lessons

Video Thumbnail

Concept

Problem: A ball moves in a straight line (the x-axis). The graph in the figure below shows this ball's velocity as a function of time. (a) What is the ball's average velocity during the first 2.8  s?(b) What is the ball's average speed during the first 2.8 s?(c) Suppose that the ball moved in such a way that the graph segment after 2.0  s was -3.0 m/s instead of +3.0 m/s. Find the ball's average velocity during the first 2.8  s in this case.(d) Find the ball's average speed during the first 2.8  s in the case described in part C.

FREE Expert Solution
88% (427 ratings)
Problem Details
A ball moves in a straight line (the x-axis). The graph in the figure below shows this ball's velocity as a function of time. 
(a) What is the ball's average velocity during the first 2.8  s?
(b) What is the ball's average speed during the first 2.8 s?
(c) Suppose that the ball moved in such a way that the graph segment after 2.0  s was -3.0 m/s instead of +3.0 m/s. Find the ball's average velocity during the first 2.8  s in this case.
(d) Find the ball's average speed during the first 2.8  s in the case described in part C.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Velocity-Time Graphs & Acceleration concept. You can view video lessons to learn Velocity-Time Graphs & Acceleration. Or if you need more Velocity-Time Graphs & Acceleration practice, you can also practice Velocity-Time Graphs & Acceleration practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Julia took 5 minutes and 7 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Ritz's class at UCI.