Asked by joe
a 50g slug is shot from a rifle at 900m/s
a) what is the KE of the slug?
b) how much work is done on the slug if it starts from rest?
a) what is the KE of the slug?
b) how much work is done on the slug if it starts from rest?
Answers
Answered by
GanonTEK
KE = (1/2)*m*v^2
m = mass (in kg)
v = velocity (in m/s)
Work = Change in KE but it starts at 0 so it's the KE you worked out - 0
Which looks to be the same as the first part and they have the same units too, joules.
m = mass (in kg)
v = velocity (in m/s)
Work = Change in KE but it starts at 0 so it's the KE you worked out - 0
Which looks to be the same as the first part and they have the same units too, joules.
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