JEE Main Physics question

Physics Motion in a Straight Line JEE Main

The motion of a body is given by the equation , where is the speed in ms and is in second. If the body was at rest at ,

(A)The terminal speed is 2.0 msCorrect
(B)The speed varies with time as msCorrect
(C)The speed is 1.0 ms when the acceleration is half the initial valueCorrect
(D)The magnitude of the initial acceleration is 6.0 msCorrect

Answer: (A),(B),(C),(D)

Solution

Solving with : ms — (B) true, and as , ms — (A) true. Initial acceleration

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Question ID VK-152148