Multiple Choice
A worker pulls horizontally on a rope that is attached to a 10-kg crate resting on a rough floor.The coefficients of static and kinetic friction are 0.5 and 0.3,respectively.The worker pulls with a force of 40 N.The frictional force exerted by the surface is
A) 30 N
B) 50 N
C) 10 N
D) 100 N
E) 40 N
Correct Answer:
Verified
Correct Answer:
Verified
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