Problem 5.64 29 of 31> Part B tants What was the vertical component of her accel

Question

Problem 5.64 29 of 31> Part B tants What was the vertical component of her acceleration while in the air? 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 1) shows the data from a force plate as a woman jumps straight up and then lands. Suppose that t- 0.28 s Express your answer to two significant figures and include the appropriate units Submit Previous Answers Request Answer Figure Incorrect, Try Again: 4 attempts remaining St Push-of Landing Still Part C What was the vertical component of her acceleration during the landing? In air Express your answer to two significant figures and include the appropriate units 1500 1000 500 r (s) Ar alue Submit Request Answer

Explanation / Answer

Part B is -9.8m/s^2 because she is in freefall when she is in the air.

Part C

a2 = -3a = -3g = -19.4 m/sec^2 = -19 m/s^2 (2sf)

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