First slide

Angular momentum

Question

When a body is projected at an angle with the horizontal in a uniform gravitational field of the earth, the angular momentum of the body about the point of projection, as it proceeds along its path

Moderate

A

remains constant
B

increases
C

decreases
D

initially decreases and after its highest point increases

Solution

Torque, $τ_{0} = m g \times r_{⊥}$
As, $r_{⊥}$ is continuously increasing or torque is continuously increasing on the particle. Hence, angular momentum is continuously increasing.

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