Question

A body initially at rest is moving with uniform acceleration a. Its velocity after n seconds is v. The displacement of the body is fast 2 s is

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

Answer 2

Here,

Displacement in last 2 s

$= 2 \mathrm { a } ( \mathrm { n } - 1 ) = 2 \frac { \mathrm { v } } { \mathrm { n } } ( \mathrm { n } - 1 )$