Question

A particle starts moving in a straight line with certain acceleration.At a time t after beginning of motion the acceleration suddenly becomes retardation of the same value.The time(from start)in which the particle comes momentarily to rest is
A)
\sqrt{2t}
2t
​

B)
(2 + \sqrt{2)t}(2+
2)t
​

C)
t \div \sqrt{2}t÷
2
​

D)2t​

Answer 1

Answer:

no problem

Explanation:

it is very easy you can do it