1.

The velocity- time graph of car moving on a straight track is given below. The car weight 1000kg. The braking force rewquired to boring the car to a stop with in one second from the maximum speed is:A. `(10000)/3N`B. `5000N`C. `10000N`D. `(5000)/3N`

Answer» Correct Answer - C
Retardation `=(10ms^(-1))/5 =10ms^(-2)`
:. Braking force =ma `=1000xx10=10000` N
Hence(C)


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