the man walk 2m carrying a mass of 15kg
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what to do??? what is the question
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Work done in fig 6.13 (i)
Mass, m = 15 kg
Displacement, s = 2 m
Work done, W = Fs Cosθ
Where, θ = Angle between force and displacement
= mgs Cosθ = 15 × 2 × 9.8 Cos 900
= 0
Work done in fig 6.13 (ii)
Mass, m = 15 kg
Displacement, s = 2 m
Here, the direction of the force applied on the rope and the direction of the displacement of the rope are same.
Therefore, the angle between them, θ = 0°
Since cos 0° = 1
Work done, W = Fs cosθ = mgs
= 15 × 9.8 × 2 = 294 J
Hence, more work is done in the Fig. 6.13
Explanation:
the phenomenal
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