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please help with 1&2 :) A 2000kg car slows from 30m/s to 20m/s in 12s. Calculate...

please help with 1&2 :)

A 2000kg car slows from 30m/s to 20m/s in 12s.

  1. Calculate the power delivered to the brakes.
  2. Calculate the force acting on the car.
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