Work, Energy and Power-Work Done (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics): Questions 4 - 4 of 4

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Question number: 4

» Work, Energy and Power » Work Done

MCQ▾

Question

A block of mass 25 kg slides down a rough slope which is inclined at 450 to the horizontal. The coefficient of sliding friction is 0.30. When the block has slid 15 m, the work done on the block by the force of friction is nearly,

Choices

Choice (4) Response

a.

397.7J

b.

397.7J

c.

795.45 J

d.

795.45J

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