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23-10-2020
Physics

contestada

A constant force of 20 N is exerted for 10 s on
a 40 kg object initially at rest. The change in
speed of this object will be:

Respuesta :

pfellas pfellas

23-10-2020

The force x time is equal to the change of momentum. 20x10=200 Ns
The 40 kg object initially at rest will have a velocity of 200/40= 5 m/s and that is the change in speed. :)

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