Answer to Question #77499 in Physics for JoseGomez

Question #77499

If you push a 35 kg box from rest across a floor in 5 seconds and reach a speed of 15m/s, what is the applied force?

Expert's answer

The Newton’s second law states
F=ma
Here the acceleration a is given by
a=∆v/∆t=(15-0)/5=0 m/s^2
So
F=35×3=105 N

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