Question

Let u be initial velocity of a body. In time t velocity increases to v. If a be the acceleration during this time,
Then, v=. ?​

Answer 1

Explanation:

Correct option is

C

-u

I. By III equation of motion,

v2=u2+2as

(5v)2=u2+2as

25v2−u2=2as

24u2=s

2a

∴ Distance travelled =S=a12u2

II. v2=u2+2as

v2=(5u)2+2(−a)(a12v2)

v2=25v2−24u2

v2=u2

v=1u

⇒v=−u.

brainliest please