A 1500 kg car accelerates from 50 m/s to 36 km/h in 8.0 s.what is the braking force of the car? How far does it go before coming to a stop?

Please help! I am teaching myself and I am still having problems.
Update: A 1500 kg car accelerates from 50 m/s to 36 km/h in 8.0 s.what is the braking force of the car? How far does it go before coming to a stop?
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