Question

the velocity of a body depends on time according to the equation v = t^2/10 + 20 the body is undergoing
a) uniform acceleration
b) uniform retardation
c) non uniform acceleration
d) zero acceleration ​

Answer 1

Answer:

Option : C. non uniform acceleration.

Reason:

$a = \frac{dv}{dt}$

$= \frac{d}{dt} (20 + 0. {1t}^{2} )$

$= 0.2t$

Since, acceleration,a, does depend on time, t, it is non-uniform acceleration.

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Answer 2

Answer:

b uniform retardation is correct answer