Questions
An impulse I is applied at the end of a uniform rod if mass m. then :
a
KE of translation of the rod isl22m
b
KE of rotation of the rod is 3l22m
c
KE of the rod is 2l2m
d
all of these
detailed solution
Correct option is D
from conxervation of linear momentum the rod also has the same linear momentum I and kinetic of transtion is l22m from coservation of angular momentum L= Il=ml23ω ω=3Iml; rotational kinetic energy 12Lω= 12 I l3Iml=3I22mTalk to our academic expert!
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