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)
$\sqrt{2t}$
B)
$(2 + \sqrt{2)t}$
C)
$t \div \sqrt{2}$
D)2t​

Answer 1

Answer:

D is the correct answer

Explanation:

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