Question

*61.A particle starts from rest and moves along a straight line with a constant acceleration of magnitude 5m/s2. Its speed after a time interval of 10 seconds is nivom ybod A.189 ( 1) 20 m/s 2) 30 m/s 3) 40 m/s 4) 50 m/s​

Answer 1

Answer:

Correct option is

B

option

We use the relation:

v

2

−u

2

=2as

Body starts from rest and has constant acceleration. Hence

v

2

=2as

v=

2as

Hence option B is correct (y=k

x

graph)