brookedurham412 brookedurham412

25-02-2018
Physics

contestada

What is the minimum force required to increase the energy of a car by 68 j over a distance of 12 m? Assume the force is constant?

A. 5.7 N
B. 80 N
C. 68 N
D. 820 N
E. 0.18 N

Respuesta :

jcherry99 jcherry99

25-02-2018

The wording of this can be bothersome. I think you should be using
E = F * d
E = 68 J
d = 12 m
F = ???

68J = F * 12 m
68J/12 m = F
5.67 N

A <<<<<====== Answer

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