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A BLOCK OF MASS m IS PULLED ALONG A HORIZONTAL SURFACE BY APPLYING A FORCE AT AN ANGLE i WITH THE HORIZONTAL. THE FRICTION COEFFICIENT IS u . IF THE BLOCK TRAVELS AT A UNIFORM VELOCITY , THE WORK DONE BY THE APPLIED FORCE DURING A DISPLACEMENT d OF THE BLOCK WILL BE WHAT?

A BLOCK OF MASS m IS PULLED ALONG A HORIZONTAL SURFACE BY APPLYING A FORCE AT AN ANGLE i WITH THE HORIZONTAL. THE FRICTION COEFFICIENT IS u . IF THE BLOCK TRAVELS AT A UNIFORM VELOCITY , THE WORK DONE BY THE APPLIED FORCE DURING A DISPLACEMENT d OF THE BLOCK WILL BE WHAT?

Grade:12

1 Answers

Eshan
askIITians Faculty 2095 Points
4 years ago
Dear student,

Since the block moves in the horizontal direction and the force is at an angleito the horizontal, the work done by applied force during displacementdbecomes

W=\vec{F}.\vec{d}=F d cos i

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