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If the uniform acceleration near the sur...

If the uniform acceleration near the surface of the earth is about 9.8 `m//sec^2`. for a free-fall, what Is the velocity at the end of 2 seconds of fall (neglect friction) ?

A

14.6 m/sec

B

17.0 m/sec

C

19.6 m/sec

D

9.8 m/sec.

Text Solution

Verified by Experts

The correct Answer is:
C
At a uniform acceleration of 9.8 `m//sec^2` the body goes from 0.98 m/sec. in the first second and from 9.8 m/sec to 19.6 m/sec. at the end of the 2nd second to fall
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