Answer to Question #313679 in Physics for mg_sol

Question #313679

A 1205 kg car is running a speed of 35 m/s along a level road. How large a constant retarding force is required to stop it in 15 s?

Expert's answer

The Newton's second law says

"F=ma=m\\frac{\\Delta v}{\\Delta t}"

"F=1205\\times \\frac{0-35}{15}=-2812\\:\\rm N"

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