Problem the parachute on a race car of weight 8940 n opens, Ask an Expert

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Problem: The parachute on a race car of weight 8940 N opens at the end of a quarter mile run when the car is traveling at 38.0 m/s.

Part A: What total retarding force must be supplied by the parachute to stop the car in a distance of 1020 m?

Please help, completely confused!! Give steps if possible for above problem.

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