Tardigrade
Tardigrade - CET NEET JEE Exam App
Exams
Login
Signup
Tardigrade
Question
Physics
If torque is zero then
Q. If torque is zero then
3159
201
Punjab PMET
Punjab PMET 2005
System of Particles and Rotational Motion
Report Error
A
angular momentum is conserved
58%
B
linear momentum is conserved
17%
C
energy is conserved
12%
D
angular momentum is not conserved
14%
Solution:
Torque
τ
=
d
t
d
L
where,
L
=
angular momentum
If
τ
=
0
then
d
t
d
L
=
0
i.e.,
L
=
constant