1. A bulldozer accelerates from rest to 3.00 m/s in 4.20 s. What is its acceleration?
2. A pickup truck pulling a trailer accelerates at 3.25 m/s2 for 5.80 s. If it starts from rest, what is its final velocity?
3. The speed of a delivery van increases from 2.00 m/s at 1.00 s to 16.0 m/s at 4.50 s. What is its average speed?
4. A go-cart rolls backward down a driveway. We define forward speed as positive and backward speed as negative. The cart’s speed changes from – 2.00 m/s to – 9.00 m/s in 2.00 s. What is its acceleration?
5. A stock car is moving at 25.0 m/s when the driver applies the brakes. If it stops in 3.00 s, what is its average acceleration?
6. If the car in Problem 23 took twice as long to stop, what would its acceleration be?
7. If the car in Problem 23 was going twice as fast but was able to stop in the same time, what would its acceleration be?
8. If the car in Problem 23 was going twice the speed and stopped in twice the time, what would its acceleration be?