24. A block of mass m=2 kg is held compressing a spring with k=600 N/m a distance z=0.2 m on a rough horizontal surface. The block is released from rest and travels a distance d= 2 m before coming to rest, what is the coefficient of kinetic friction between the block and the surface ? (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4 (e) 0.5 m

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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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24. A block of mass m=2 kg is held compressing a spring with
k=600 N/m a distance z=0.2 m on a rough horizontal
surface. The block is released from rest and travels
a distance d= 2 m before coming to rest, what is the
coefficient of kinetic friction between the block and the
surface ?
(a) 0.1
(b) 0.2
(c) 100
(c) 0.3 (d) 0.4
25. A boy with mass m-50 kg walks up h=2 m high stairs at a
constant speed in t=4 s. What is the average power in W used
in walking up the stairs?
(a) 40
(b) 50
(e) 0.5
(d) 200
www
HA
(e) 250
m
d
Transcribed Image Text:24. A block of mass m=2 kg is held compressing a spring with k=600 N/m a distance z=0.2 m on a rough horizontal surface. The block is released from rest and travels a distance d= 2 m before coming to rest, what is the coefficient of kinetic friction between the block and the surface ? (a) 0.1 (b) 0.2 (c) 100 (c) 0.3 (d) 0.4 25. A boy with mass m-50 kg walks up h=2 m high stairs at a constant speed in t=4 s. What is the average power in W used in walking up the stairs? (a) 40 (b) 50 (e) 0.5 (d) 200 www HA (e) 250 m d
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