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When a ball is released from a top of bu...

When a ball is released from a top of building the distance covered by it in 4 sec will be

A

20 m

B

40 m

C

80 m

D

None

Text Solution

Verified by Experts

The correct Answer is:
C
`u = 0, a= 10 m//s^2, t = 4s`
`s = 1/2 xx 10 xx t^2 = 5 xx 4 xx 4 = 80 m`
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CENGAGE PHYSICS-DESCRIPTION OF MOTION-CONSOLIDATED EXERCISE (MULTIPLE-CHOICE QUESTIONS WITH ONE CORRECT ANSWER)
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