Question

a body is moving such that it covers a distance of K meters during which velocity halved
then what is the father distance travel before coming to rest ​

Answer 1

Explanation:

Given, Distance=3km

Let the initial velocity =vm/s

Final velocity

2

v

So, V

2

−u

2

=2as⇒

4

v

2

−v

2

=2a×3⇒

4

−3v

2

=6a⇒=

8

−v

2

Now, Initial velocity

2

v

Final velocity =0

Let the distance travelled is Xcm

So,

4

−v

2

=2×

8

−v

2

×X⇒X=1 km