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 Delta t = 0.24s.
A)
What was the vertical component of her acceleration during push-off? The positive direction is upward.
Express your answer to two significant figures and include the appropriate units. +
B)
What was the vertical component of her acceleration while in the air?
Express your answer to two significant figures and include the appropriate units.
C)
What was the vertical component of her acceleration during the landing?
Express your answer to two significant figures and include the appropriate units.
D)
What was her speed as her feet left the force plate?
Express your answer to two significant figures and include the appropriate units.
E)
How high did she jump?
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 Delta t = 0.24s.
A)
What was the vertical component of her acceleration during push-off? The positive direction is upward.
Express your answer to two significant figures and include the appropriate units. +
B)
What was the vertical component of her acceleration while in the air?
Express your answer to two significant figures and include the appropriate units.
C)
What was the vertical component of her acceleration during the landing?
Express your answer to two significant figures and include the appropriate units.
D)
What was her speed as her feet left the force plate?
Express your answer to two significant figures and include the appropriate units.
E)
How high did she jump?
