A weight of 500N must be pulled with 230N to get it to move. However, to...
A weight of 500N must be pulled with 230N to get it to move. However, to keep it in motion the pull just needs to be 200N. What are the coefficients of static and kinetic friction?
Now the weight is pulled with a rope at 300 to the horizontal on the same surface. What is the tension required to keep the weight moving?
Homework Answers
A weight of 500N must be pulled with 230N to get it to move. However, to keep it in motion the pull just needs to be 200N
Lets assume the force is applied horizontally
When the weight is just about to move (static friction) ,acceleration is zero
Net Force =Mass *acceleration =0
ANSWER: 
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(b)To keep it in motion the pull just needs to be 200N
If the motion is with constant velocity ,then acceleration is zero
Net Force =Mass *acceleration =0
ANSWER: 
========================
(c)the weight is pulled with a rope at 30 deg to the horizontal on the same surface. What is the tension required to keep the weight moving?
If the motion is with constant velocity ,then acceleration is zero
Net Force =Mass *acceleration =0
ANSWER:
===================
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