A cubical block of side is moving with velocity on a horizontal smooth plane as shown in Figure. It hits a ridge at point . The angular speed of the block after it hits is
a) |
b) |
c) |
d) |
Zero |
A cubical block of side is moving with velocity on a horizontal smooth plane as shown in Figure. It hits a ridge at point . The angular speed of the block after it hits is
a) |
b) |
c) |
d) |
Zero |
(a)
or
Net torque about is zero
Therefore, angular momentum about will be conserved, or