Answer:
250 N
Explanation:
Vf=final velocity
Vi =initial velocity
=70-20/2=25m/s^2
F=ma
=10kg * 25m/s^2
=250N
What energy transformation takes place when you stretch a bungee cord?
1 answer:
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Answer:
p = 8N/mm2
Explanation:
given data ;
diameter of cylinder = 150 mm
thickness of cylinder = 6 mm
maximum shear stress = 25 MPa
we know that
hoop stress is given as =
axial stress is given as =
maximum shear stress = (hoop stress - axial stress)/2
putting both stress value to get required pressure
t = 6 mm
d = 150 mm
therefore we have pressure
p = 8N/mm2