A car is moving with a velocity of 10 m/...

A car is moving with a velocity of 10 m/s. Suddenly driver sees a child at a distance of 30 m and he applies the brakes, it produced a uniform retardation in car and car stops in 5 second. Find (mass of car=1000 kg)
the stopping distance of car
will the car hit the child
the retardation in car
resistive force on car

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