Chapter 5, Problem 64GP

Researchers often use force plates to measure the forces that people exert against the floor during movement. A force plate works like a bathroom scale, but it keeps a record of how the reading changes with time. Figure P5.64 shows the data from a force plate as a woman jumps straight up and then lands.

Figure P5.64

a. What was the vertical component of her acceleration during push-off?

b. What was the vertical component of her acceleration while in the air?

c. What was the vertical component of her acceleration during the landing?

d. What was her speed as her feet left the force plate?

e. How high did she jump?