A 1400-kg car is brought from 25 m/s to 10 m/s over a time period of 5.0 seconds. Determine the force experienced by the car.

If a 2.3 kg object is initially at rest on a frictionless, horizontal surface and subjected to a  10.2 N force in the positive x-direction over a distance of 4.1 meters, what will the object’s  final speed be? Assume the answer in in m/s.

A 47 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backwards with a velocity of -1.1 m/s. Her hands are in contact with the wall for 1 seconds. Ignoring friction and wind resistance, find the average force she exerts on the wall? Faverage

If a 2 kg object is initially at rest on a frictionless, horizontal surface and subjected to a  13.7 N force in the positive x-direction over a distance of 3.25 meters, what will the object’s  final speed be? Assume the answer in in m/s.

On an essentially frictionless, horizontal ice rink, a skater moving at 4.0 m/s encounters a rough patch that reduces her speed by 44% due to a friction force that is 28% of her weight.

The motorcycle has a mass of 0.5-Mg and a negligible size. Itpasses point ‘A’ traveling with a speed of 15m/s, which isincreasing at a constant rate of 1.5m/s2. Determine the resultant frictional force exerted by the road on the tires at this instant.

3. A car carrying a 80 kg test dummy crashes into a wall at 20 m/s and is brought to rest in 0.2 seconds. What is the average force exerted by the seat belt on the dummy?

A 3.00-kg object is initially moving northward at 15.0 m/s. Then a force of 15.0 N, toward the east, acts on it for 6.00 s. At the end of the 6.00 s, what is magnitude of the object’s final velocity?

After falling from rest from a height of 28 m, a 0.35-kg ball rebounds upward, reaching a height of 18 m. If the contact between ball and ground lasted 2.5 ms, what average force was exerted on the ball? ( enter the magnitude)

A man ( mass = 100 kg) fall freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of .2s. The average force exerted on her by the ground is + 2000 N, where the upward direction is taken to be the positive direction. A) from what height did he just fall? Assume the only force acting on him during the collision is that of the ground. B) suppose instead of the man, a 5 kg rubber ball was dropped from the same vertical distance and the ball bounced back conserving the linear momentum. What would be the velocity of the ball just when it bounced back?