PHY 121
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Answer the following based on Newton's Second Law:
• How much net force is required to accelerate a 12 kg mass at 3 m/s^2?
12*3=36
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• What would be the acceleration of a 4 kg mass subject to a net force of 20 Newtons?
4*20=80
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• If you exert a force of 20 Newtons on a 10-kg object and it accelerates in the direction of your force at 1.5 m/s^2, then how do you know there are other forces acting on the object besides your own?
20/10=2
Because you need more force to move at 1.5m/s^2
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• What is the total of all those forces and in what direction does this total act?
36+80+2= 118
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15 min
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&#Please compare your solutions with the expanded discussion at the link
Solution
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