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Grade:

                        

a block of mass m is pulled along a horizontal frictionless surface by applying a force at an angle with the horizontal. if the block travels with uniform velocity and has a displacement d and the co efficient of friction is mu, then find the work done by the applied force

8 years ago

Answers : (1)

Kurma Anudeep
30 Points
							

as it is frictionless , then v=constant and a=0,

resultant force=0

therefore,

fcostheta-f=0

fcostheta=f=mu mg

W=fcostheta * S=mu mg*S

thank you

8 years ago
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