driver of a car travelling at 65km/h in an easternly direction, steps on the brakes and stops in 4.0s. while braking, the average acceleration of the car in (m/s^2)   A) 16.3 m/s^2 towards the west B) 4.5 m/s^2 towards the west C) 4.5 m/s^2 towards the east D) 16.3 m/s^2 towards the east

You travel from point A to point B in a car moving at a constant speed of 70 km/h. Then you travel the same distance from point B to another point C, moving at a constant speed of 90 km/h. Is your average speed for the entire trip from A to C 80 km/h? Explain why or why not.

32. An object moves with constant acceleration 4.00 m/s² and over a time interval reaches a final velocity of 12.0 m/s. (a) If its original velocity is 6.00 m/s, what is its displacement during the time interval? (b) What is the distance it travels during this interval? (c) If its original velocity is -6.00 m/s, what is its dis- placement during this interval? (d) What is the total distance it travels during the interval in part (c)?

An automobile travels on a straight road for 34 km at 36 km/h. It then continues in the same direction for another 34 km at 72 km/h. (a) What is the average velocity of the car during this 68 km trip? (Assume that it moves in the positive × direction.) (b) What is the average speed?

Assume you are driving a car at a constant speed of 76 km/h. Suddenly you see a deer standing on the highway and you must put on the brakes. Your reaction time (time elapsed between the moment you see the deer and your foot hitting the brakes) is 0.118 s. The brakes provide an acceleration with a magnitude of 4 m/s2, and a direction opposite the initial velocity.   How do you find the total distance traveled?

7) A cyclist moves at 11.0 m/s for 1.00 min and at 16.0 m/s for 2.00 min. Find the average velocity if the second part of the motion is (a) in the same direction as the first (hint, the answer is not 13.5 m/s), and (b) in the opposite direction.

Which one of the following situations is possible at a given time t? (A) An object has an instantaneous velocity with a magnitude greater than 0 m/s and an acceleration of 0 m/s^2. B An object has an instantaneous velocity of 0 m/s and an acceleration of 0 m/s^2. (c) An object has an instantaneous velocity of 0 m/s and an acceleration with a magnitude greater than 0 m/s^2. D Choices a, b, and c are all possible situations.