How much power will it take to move a 50Kg box 10m across a floor that has -50N of Frictional forces in 3 seconds?
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Answer:
Refer to the attachment!~
Answer:
x=0.46m, speed=7.9m/s
Explanation:
Using the concept of conservation of energy:
1. kinetic energy of mass m and velocity v:
2. gravitational potential energy of mass m, grav. acc. g and height h:
3. potential energy in a spring with spring constant k and displacement from equilibrium x:
Calculating x:
Calculating the speed:
Solving for :