pickles5599 pickles5599

25-01-2018
Physics

contestada

If a 40-kg object is moving with a velocity of 65 m/s to the right, for how many minutes must a force of 4n be applied in the opposite direction to result in a final velocity of the object of 10 m/s in the opposite direction?

Respuesta :

HenryLCH HenryLCH

25-01-2018

F = ma
4 = 40a
a = 0.1 m/s

v = u + at
-10 = 65 - 0.1t
t = 750s = 12.5 min

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