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A rocket is fired vertically from the gr...

A rocket is fired vertically from the ground. It moves upwards with a constant acceleration `10m//s^(2)` after 30 sec the fuel is finished. After what time from the instant of firing the rocket will attain the maximum height? `g=10m//s^(2)`:-

A

130 s

B

45 s

C

60 s

D

75 s

Text Solution

Verified by Experts

The correct Answer is:
B
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