A race car with a mass of 500 kg on a bridge 45 m above a river what is the potential energy of the car?

answer; (arch); good luck

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one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.