Question

The velocity of a body moving in a straight line at
the end of 5 s is 30 m/s, at the end of 12 s is
58 m/s and at the end of 22 s, it is 98 m/s. The
body is moving with
(1) Uniform velocity (2) Uniform acceleration
(3) Zero velocity (4) Uniform retardation
Explain step by step in detail ​

Answer 1

Answer:

Let's take the time interval b/w 5 to 12 sec.

So : u = 30 m/s, v = 58 m/s, t = 12-5 = 7 s

So by first equation,

Again let's do the same for 12 to 22 sec

So : u = 58 m/s, v = 98 m/s, t = 22-12 = 10 s

So by first equation,

So the body is moving with uniform acceleration.

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