A gazelle is running at 17.46 m/s. He sees a lion and accelerates at -1.49 m/s/s, How fast is he running 2.39 seconds later?

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

Work = force × a. work b. energy c. distance d. momentum