A student wearing a frictionless roller skates on a horizontal is pushed by a friend with a constant force of 55N. How far must
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Answer:
Explanation:
The work done on a particle by external forces is defined as:
According to Newton's second law . Thus:
Acceleration is defined as the derivative of the speed with respect to time:
Speed is defined as the derivative of the position with respect to time:
Kinetic energy is defined as :