Question

1. A force of 20.0 N is applied to a 3.00 kg object for 4.00 seconds. Calculate the impulse experienced by the object.
2. A 1200 kg car traveling at 20.0 m/s speeds up to 30.0 m/s. What is the impulse experienced by the car?
3. A 1500 kg car accelerates from 55.0 km/h to 90.0 km/h. Calculate the impulse experienced by the car.
4. A 1200 car accelerates from rest to 10.0 m/s in a time of 4.50 seconds. Calculate the force that the car’s tires exerted on the road.
5. A 1500 kg car travelling at 80.0 km/h comes to a screeching halt in a time of
4.00 seconds. Calculate the force of friction experienced by the car.
6. A 1.00 kg ball travelling towards a soccer player at a velocity of 5.00 m/s rebounds off the soccer player’s foot at a velocity of 8.50 m/s. If the time of contact between the ball and the player’s foot was2.00 x 10-2 seconds, what was the force that the foot applied on the ball?

Answer 1

1) 80N s is the impulse experienced by the object.

Answer 2

80N s is the impulse experienced by the object.