Question

31. A car travels with a uniform velocity of 25 ms for 5s. The brakes are then appliest and the car comes to with a uniform retardation in a further 10s Draw a velocity-time graph and use it to find
(a) distance which the car travels after the brakes are applied
(b) the retardation​

Answer 1

Answer:

given

The car is brought to rest after 10s. Just before the brakes are applied, the velocity of the car is 25 m/s and when the car is brought to rest, its velocity becomes zero. Therefore, in this case, the initial velocity of the car in its decelerated motion is u=25m/s and final velocity is v=0m/s.

Explanation:

see attachment

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