A trampoline spring has a force constant k = 800 N/m and is stretched exactly 17.5cm. What is the energy required to do this?
1 answer:
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Answer:
Explanation:
Given
height from which ball is dropped
and it rises to a height of
A person caught the ball in mid-way i.e. at a height of from pavement
time taken to reach the bottom is given by
where y=displacement
u=initial velocity
a=acceleration
t=time
here initial velocity is zero i.e.
Similarly to reach of height time taken is
The ball is caught in mid-way i.e. ball travel a distance of
time taken is
total time taken
total time =3.429 s