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    Calculate the Stopping Force on braking car physics...?

    A car travelling at 120km/hr (33.3m/s) brakes to a stop over 25 m, if the driver is 60kg, what is the stopping force. It says to use formula Fd=1/2mv^2-1/2mu^2 where v is final and u is initial speed so is the final speed 0? then is the answer 432000 J?
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