A car is travelling at 20m/s along a road. A child runs out into the r

1.	A car is travelling at 20m/s along a road. A child runs out into the road 50 mahead and the car driver steps on the brake pedal. What must be car'sdeceleration if the car is to stop just before it reaches the child?
Answer» EXPLANATION: I am not sure about the answer but STILL I TRIED just CHECK it once

A car is travelling at 20m/s along a road. A child runs out into the road 50 mahead and the car driver steps on the brake pedal. What must be car'sdeceleration if the car is to stop just before it reaches the child?

Answer»

EXPLANATION:

I am not sure about the answer but STILL I TRIED just CHECK it once

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A car is travelling at 20m/s along a road. A child runs out into the road 50 mahead and the car driver steps on the brake pedal. What must be car'sdeceleration if the car is to stop just before it reaches the child?​

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A car is travelling at 20m/s along a road. A child runs out into the road 50 mahead and the car driver steps on the brake pedal. What must be car'sdeceleration if the car is to stop just before it reaches the child?