Posted by **Joceylin** on Monday, November 29, 2010 at 9:17pm.

1) a force of 10 N acts on a 5.0 kg object, initially at rest, for 2.5 s. What is the final speed of the object?

2) a 1500 kh car, is allowed to coast along a level track at a speed of 8.0 m/s. It collides and couples with a 2000-kg truck , initially at rest with brakes released. What is the speed of the two vehicles after they collide?

3) a 0.060 tennis ball, initially moving at a speed of 12 m/s, is struck, which causes it to rebound in the opposite direction at a speed of 18 m/s. What is the change in momentum of the ball?

4) a 0.35 jk mud ball is dropped from a height of 2.5 m above a floor. When it hits the floor, the mud ball comes to rest in 0.30 s. What is the magnitude if the average force on the mud ball by the floor?

## Answer this Question

## Related Questions

- physics - true or false If a net force acts on an object, the object's speed ...
- Physics - A 20 N force acts on a 10 kg object parallel to the object's ...
- PHYSICS - 1. A 4.0 N force acts for 3 seconds on an object. The force suddenly ...
- PHYSICS - 1. A 4.0 N force acts for 3 seconds on an object. The force suddenly ...
- physics - You do a certain amount of work on an object initially at rest, and ...
- physics - You do a certain amount of work on an object initially at rest, and ...
- physics - You do a certain amount of work on an object initially at rest, and ...
- Physics - In a 1-dimensional problem, a single force acts on a 10 kg object and ...
- physics - One object is at rest and another is moving. The two collide in a one-...
- physics - An object in the vacuum of space orbits the earth at a fixed speed in ...

More Related Questions