Physics
22.02.2023 07:00
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A 29.0-kg block is initially at rest on a horizontal surface. A horizontal force
A 29.0-kg block is initially at rest on a horizontal surface. A horizontal force of 71.0 N is required to set the block in motion, after which a horizontal force of 56.0 N is required to keep the block moving with constant speed.
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catt707p38uu0
4,8(90 marks)
(a) 
(b) 
Explanation:
According to Newton's second law:
Recall that the frictional force is related jointly with the coefficient of friction and normal force 
. Replacing in the above equation, we get the coefficient of friction:
(a) The coefficient of static friction is related with the force required to set the block in motion:
(b) The coefficient of kinetic friction is related with the force required to keep the block moving with constant speed:
brooklyn4932
4,5(53 marks)
i ate apple pie yesterday
Explanation:
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