Now
suppose A and B are blocks of ice, so that friction between them
and the floor is negligibly small. They are moving to the left, and
the worker pushes to the right on them with a force of 300 N,
causing them to slow to a stop.
(A) Is the magnitude of the force that crate B exerts on crate A
greater than, equal to, or less than 300 N?
(B) Is the magnitude of the force that crate A exerts on crate B
greater than, equal to, or less than 300 N?
(C) Explain your answers to parts a and b.
Homework Answers
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Now
suppose A and B are blocks of ice, so that friction between them
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#23
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F0=115 N
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t1=2077 s
v0=119 ms
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#23
Use Newton's second law to find the acceleration of the sled. (Remember the friction e) force!) "23. A hand pushes two blocks across a frictionless pond of ice. Block A has mass m-ikg and block B has mass m, -4 kg.Ifthe hand pushes with a constant horizontal force of 15 new- tons, find the magnitude of the normal force exerted by block B on block A. "24. You are riding upward in an elevator carrying a 25-kg box of...
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m2=26 kg
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F0=115 N
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Speed at ti
Find the magnitude of the friction force from 1 on 2 at
t1. You may use
s=020
k=016
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