An Olympic sprinter can start from rest and reach a top velocity of 11.5m/s, in the first 15.0m of a race. A)What average acceleration does the sprinter have to have to achieve this Velocity? B) How much time does it take the sprinter to achieve that velocity?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?