A mass of 2kg rests on an inclined planes of gradient 1 in 8 as shown. The work done in sliding it from the lowest point of the inclined to the highest point, if the coefficient of friction is 0.2, is-
A mass of 2kg rests on an inclined planes of gradient 1 in 8 as shown. The work done in sliding it from the lowest point of the inclined to the highest point, if the coefficient of friction is 0.2, is-
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Q2
A block of mass 5kg slides down on a rough inclined plane of coefficient of friction 0.75 having angle of inclination 37∘ as shown in the figure. Initially if the block is at rest on the top of inclined plane of length 2m, then the work done against the friction in moving the block to the bottom of inclined plane is (Take g=10m/s2).
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Q3
A block of mass 5kg slides down on a rough inclined plane of coefficient of friction 0.75 having angle of inclination 37∘ as shown in the figure. Initially if the block is at rest on the top of inclined plane of length 2m, then the work done against the friction in moving the block to the bottom of inclined plane is (Take g=10m/s2).
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Q4
300J of work done in sliding a 2kg block up an inclined plane of height 10m. Taking g=10m/s2, work done against friction is:
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Q5
A solid sphere of mass m is placed on a rough inclined plane as shown in the figure. The coefficient μ is insufficient to start pure rolling. The sphere slides a length ℓ on the incline from rest and its kinetic energy becomes K. Then, the work done by friction will be