If it takes 7.4 s to run up the stairs at your house, and you run an average speed of 1.2 m/s, how tall is your staircase?
1 answer:
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Answer:
Explanation:
When we push the box from the bottom of the incline towards the top then by work energy theorem we can say that
Work done by all the forces = change in kinetic energy of the system
here we know that
also we know that the length of the incline is given as
now we have
so we have