A bomb is kept stationary at a point. It suddenly explodes into two fragments of masses 1g and 3g. The total KE of the fragments is 6.4 J. what is the KE of the smaller fragment? |
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a) |
J |
b) |
J |
c) |
4.8 J |
d) |
J |
A bomb is kept stationary at a point. It suddenly explodes into two fragments of masses 1g and 3g. The total KE of the fragments is 6.4 J. what is the KE of the smaller fragment? |
||||||||
a) |
J |
b) |
J |
c) |
4.8 J |
d) |
J |
(c)
As the momentum of both fragments are equal therefore
According to problem
J
By solving equation (i) and (ii) we get
J and
J