PHY201
Your 'cq_1_11.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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Seed Question 11.1
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?
answer/question/discussion:
f = ma = 12kg * 3m/s/s = 36N
• What would be the acceleration of a 4 kg mass subject to a net force of 20 Newtons?
answer/question/discussion:
f = ma
a = f/m = 20N / 4kg = 5m/s/s
• 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?
answer/question/discussion:
f = ma
20N = 10kg * 1.5m/s/s
20N = 15m/s/s is not equal so other forces must be acting on the object in the amount of -5N in order for the force to equal mass * acceleration
• What is the total of all those forces and in what direction does this total act?
answer/question/discussion:
The total of all of the forces = 20N – 5N = 15 N so that 20N – 5 N = 10kg * 1.5m/s/s so 15N = 15N.
The total acts in the positive direction.
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15min
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&#Very good responses. Let me know if you have questions. &#