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Velocity, Acceleration.
Momentum, Newtons 2nd Law Problems
Name__________________
Date: _____ Mod.: _______
1. What is the speed of a car that travels 150 km in 3.00 hrs? Is the car speeding on 84th st? (1.0 m/s = 2.23
mi/hr)
2. A vehicle travels 2345 m in 315 s toward the evening sun. What is its velocity?
3. What is the speed of a bus that travels 250.0 km in 2.00 hours?
4. What distance will be traveled if you are going 120km/hr for 30. min?
5. How long will it take to go150 km traveling at 50 km/hr?
6. How long will it take to travel 200 km traveling 100 m/s?
7. A ball is moving at 4.5 m/s and has a momentum of 75 kg·m/s. What is the ball's mass?
8. Your brother’s mass is 40.0 kg, and he as a 1.30 kg skateboard. What is the combined momentum of
your brother and his skateboard if they are going 8.50 m/s?
9.
Your brother’s mass is 55.0 kg, and he as a 2.0 kg skateboard. What is the combined momentum of
your brother and his skateboard if they are going 8.50 m/s?
10. A 2.0-kg ball has a momentum of 25 kg·m/s. What is the ball's speed?
11. A 1.0-kg ball has a momentum of 12 kg·m/s. What is the ball's speed?
12. A meteoroid changed velocity from 1.0 km/s to 1.8 km/s in 0.03 seconds. What is the acceleration of the
meteoroid?
13 The space shuttle releases a space telescope into orbit around the earth. The telescope goes from being
stationary to traveling at a speed of 1700 m/s in 25 seconds. What is the acceleration of the satellite?
14. A runner covers the last straight stretch of a race in 4 s. During that time, he speeds up from 5 m/s to 9 m/s.
What is the runner’s acceleration in this part of the race?
15. Falling objects drop with an average acceleration of 9.8 m/s2. If an object falls from a tall building, how
long will it take before it reaches a speed of 49 m/s?
16. A man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s2. What amount
of force acted on the ball?
17. You give a shopping cart a shove down the isle. The cart is full of groceries andhas a mass of 18 kg. The
cart accelerates at a rate of 3 m/s2. How much force did you exert on the cart?
18. The wind pushes a paper cup along the sand at a beach. The cup has a mass of 0.025 kg and accelerates at a
rate of 5 m/s2. How much force is the wind exerting on the cup?
19. A runner has a mass of 89 kilograms. He produces a force of 84 Newtons between the ground and his
running shoes. How fast does he accelerate?
20. Calculate the acceleration of a car if the force on the car is 450 Newtons and the mass is 1300 kilograms.
21. A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2. What is the mass of the
object?
22. A bowling ball rolled with a force of 15 N accelerates at a rate of 3 m/sec2; a second ball rolled with the
same force accelerates 4 m/sec2. What are the masses of the two balls?
23. If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be person’s
acceleration?
24.A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object.