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A point initially at rest moves along x-...

A point initially at rest moves along x-axis. Its acceleration varies with time as `a = (6t + 5) m//s^(2)`. If it starts from origin, the distance covered in 2 s is:

A

20 m

B

18 m

C

16 m

D

25 m

Text Solution

Verified by Experts

The correct Answer is:
B
`v = 3t^(2) + 5`
`int_(0)^(x) dx = int_(0)^(2) (3t^(2) + 5) dt`
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