Physics, asked by jas241001, 1 year ago

The work done in dragging a block of mass 5 kg on an inclined plane of height 2 m is 150 joule the work done against the frictional force will be​

Answers

Answered by deekshadp
4

Answer:

total work done(w) = work done against + friction (w1) + work done against gravity (w2)

total work done(w) = 150j

mass = 5kg

weight=5*9.8= 49N

height= 2m

w= w1+w2

w= w1+ (w*h)

150=w1(49*h)

w1=150-98

w1= 52

hence work done against friction is 52j


jas241001: a toy gun consists of a sprin and a rubber dart of mass 10 g when compressed by 4cm and released it projects the dart to a height of 2 m if compressed by 6 cm the height achirved will be
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