Acar of mass 650 kg is moving at a speed of 0.7 m/s. a man pushes the car, increasing the speed to 2.2 m/s. how much work did the man do?

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor