Acar accelerates from rest to a velocity of 5 meters/second in 4 seconds. what is its average acceleration over this period of time? a: its acceleration is 1.25 meters/second. b: its acceleration is 5 meters/second. c: its acceleration is 0.8 meters/second. d: its acceleration is 1.25 meters/second^2. e: its acceleration is 20 meters.

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?