A man pushes the block of mass of 40 kg on a horizontal plane. If man apply a constant force of 300 N at a $60^{o}$ angle with ground then how much work has he performed after pushing the block 10m.

2000J

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1500J

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1800J

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3000J

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2500J

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Solution

The correct option is C 1500J
Given : $F = 300 N$ $S = 10$ m $θ = 60^{o}$
Work done by a man $W = F S c o s θ$
$∴$ $W = 300 \times 10 \times 0.5 = 1500$ J $(c o s 60^{o} = 0.5)$

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A man pushes the block of mass of 40 kg on a horizontal plane. If man apply a constant force of 300 N at a 60o angle with ground then how much work has he performed after pushing the block 10m.

The correct option is C 1500JGiven : F=300N S=10 m θ=60oWork done by a man W=FScosθ∴ W=300×10×0.5=1500 J (cos60o=0.5)

A man pushes the block of mass of 40 kg on a horizontal plane. If man apply a constant force of 300 N at a $60^{o}$ angle with ground then how much work has he performed after pushing the block 10m.

The correct option is C 1500J
Given : $F = 300 N$ $S = 10$ m $θ = 60^{o}$
Work done by a man $W = F S c o s θ$
$∴$ $W = 300 \times 10 \times 0.5 = 1500$ J $(c o s 60^{o} = 0.5)$