Below is a graph showing the motion of a car. Which of the following is true? velocity/ms time/s A The acceleration is constant all the time. B The velocity is constant all the time. The car is moving all the time. D The car moves after 7 seconds. C (

Which of the following statements are true regarding velocity-time graphs?I.     The slope of a velocity-time graph is acceleration.     II.    The graph has a slope of zero if the object is at rest.     III.  A line with negative slope indicates that the object is slowing down.

When Sam drove at 9.5 m/s on university blvd, she passed her friend, Jess who was riding a bike at 5.0m/s. As Sam was passing Jess, she started to slow down while Jess kept her constant speed. So Jess caught up to Sam after 3 seconds. a.) Determine the distance traveled by Jess when she caught up to Sam.

A car goes at 60 mph for 2 hours from point O and then it takes 3 hours to get back to point O. a) Find the average velocity for the entire trip. b) Find the average velocity for the first 3 hours. c) Find the average speed for the whole trip.

A car gains speed at a constant rate as it moves to the right. It covers the distance between two points 60.0 meters apart in 6.00 seconds. Its speed as it passes the second point is 15.0 m/s. a)  What was the velocity of the car at the first point? b)  What was the acceleration of the car? c)  Assuming the car began from rest and continued with this same acceleration, at what distance before the first point did the car begin?

You are driving at night on a straight path at 70MPH. Suddenly, a dog appears in your headlights 35 meters away. You immediatley apply the brakes which causes your car to slow down at a constant rate, coming to rest just before making contact with the dog.  1 mile = 1.61 km 1) How long did it take for your car to make a complete stop?  2) If you were initially driving in the 'positive x' direction, then what was your acceleration during the braking maneuver, in vector form and in m/s2?

A man runs at a constant 4m/s for 40s and then runs @ 8m/s back to his starting position. A. Total time of run ? B. Total distance covered? C. Avg speed D. Displacement at end of trip ? E. Avg. Velocity and direction if any ? How do you solve this ? Thank you