Starting from rest, a 63.0 kg woman jumps down to the floor from a helght of 0.660 m, and Immediately jumps back up Into the alr. While she is in contact with the ground during the time Interval 0

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section6.3: Relative Velocity
Problem 27PP
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TICE ANOTHER
Starting from rest, a 63.0 kg woman jumps down to the floor from a helght of 0.660 m, and immediately jumps back up Into the alr. While she is in contact with the ground during the time interval
0<t< 0.800 s, the force she exerts on the floor can be modeled using the function
F = 9,200t – 11,500t?
where F is in newtons and t is in seconds.
(a)
(a) What impulse (inN s) did the woman receive from the floor? (Enter the magnitude. Round your answer to at least three significant figures.)
N S
(b)
) With what speed (In m/s) did she reach the floor? (Round your answer to at least three significant figures.)
m/s
(c)
With what speed (in m/s) did she leave it? (Round your answer to at least three significant figures.)
m/s
(d) To what height (in m) did she jump upon leaving the floor?
m.
Transcribed Image Text:ER TICE ANOTHER Starting from rest, a 63.0 kg woman jumps down to the floor from a helght of 0.660 m, and immediately jumps back up Into the alr. While she is in contact with the ground during the time interval 0<t< 0.800 s, the force she exerts on the floor can be modeled using the function F = 9,200t – 11,500t? where F is in newtons and t is in seconds. (a) (a) What impulse (inN s) did the woman receive from the floor? (Enter the magnitude. Round your answer to at least three significant figures.) N S (b) ) With what speed (In m/s) did she reach the floor? (Round your answer to at least three significant figures.) m/s (c) With what speed (in m/s) did she leave it? (Round your answer to at least three significant figures.) m/s (d) To what height (in m) did she jump upon leaving the floor? m.
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