A bullet of mass 15g has a speed of400m/s. what is it kinetic energy? if the bullet strikes a thick target and is bought to rest in 2cm, calculate the average net force acting on the bullet. what happen to the kinetic energy originally in the bullet? (plzzz no spam thise who know only answer it's vety urgent plzzzzz, those who know only answer othervs who don't know plzzz donvt answer)
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Answered by
20
Answer:
Mass = m = 15 g = 0.015 kg (1kg = 1000 g)
Velocity = v = 400 m/s
K.E = ½ mv?
= ½ x 0.015 x 400 x 400 = 1200 Joules
Work done = K.E W = 1200 J
W=F*s
s= 2 cm = 0.02 m
1200 = 0.02 F
F = 1200 / 0.02
F = 60000 N
The energy gets converted to Heat Energy.
I Hope this will help you
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Answered by
5
Answer:
f=60000n.............
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