A variable force 'F' is applied to a body of mass 6 kg at rest. The body moves along x-axis as shown. The speed of the body at x = 5 m and x = 6 m respectively are:
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Answer:
b is the ans
Explanation
W = F × x
For x = 0 to x = 5
w=1/2×4×[5+1]
W = 12 J
From work-energy theorem
W = ΔKE
v = 2 m/s
From x = 5 m to x = 6 m
∵ F = 0
∴ v = constant = 2 m
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