A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time t is proportional to:
Text Solution
Verified by ExpertsThe correct answer is:
B
v 2 = u 2 + 2ax
v 2 = 2ax
⇒ a = 
p = fv = m. 
.v = 
∴ v 3 ∝ x ( P = constant)
v ∝ x1/3
∝ x 1/3
⇒ 
x 2/3 ∝ t
∴ x ∝ t 3/2
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