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The velocity-time graph of a particle mo...

The velocity-time graph of a particle moving in a straight line is shown in the diagram. The acceleration of the particle at `t=9 s` is.
.

A

zero

B

`ms^(-2)`

C

`-5ms^(-2)`

D

`-2ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Acceleration between 8 to 10 s (or at `t=9s`).
`a=(v_(2)-v_(1))/(t_(2)-t_(1))=(5-15)/(10-8)=-5m//s^(2)`
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