Question

1. A net force of 100 newtons is applied to a 40-kilogram cart that is already moving at 3
meter per second. The final speed of the cart was 8 meters per second. For how long was
the force applied?
6. A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec.
a)
What is the ball's change in momentum?
b)
What is the impulse?
c) If a constant force of 80 newtons is applied to change the momentum in
this situation, for how long does the force act? ?
2. A 2.000-kilogram car uses a braking force of 15,000 newtons to stop in 5 seconds.
a
What impulse acts on the car?
b)
What is the change in momentum of the car?
c
What is the initial speed of the car?​

Answer 1

1. A net force of 100 newtons is applied to a 40-kilogram cart that is already moving at 3

meter per second. The final speed of the cart was 8 meters per second. For how long was

the force applied?

6. A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec.

a)

What is the ball's change in momentum?

b)

What is the impulse?

c) If a constant force of 80 newtons is applied to change the momentum in

this situation, for how long does the force act? ?

2. A 2.000-kilogram car uses a braking force of 15,000 newtons to stop in 5 seconds.

a

What impulse acts on the car?

b)

What is the change in momentum of the car?

c

What is the initial speed of the car