science
Grade-11
Easy
Question
The instantaneous velocity of the body, if the displacement is s(t) = 2t2, with time 4 s.
- 20
- 60
- 32
- 16
Hint:
- Instantaneous velocity=
The correct answer is: 16
- Instantaneous velocity=
- Here s=
- So Instantaneous velocity=
=4t
- So at time t= 4second,Instantaneous velocity=
- So 16 is the answer
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