Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

A circular turntable is rotating freely about a vertical axis. There is no friction at the axis of rotation. (a) A bug, initially at the center of the turntable, walks out to the rim and stops. How will the angular momentum of the system (turntable plus bug) change? How will the angular velocity of the turntable change? (b) If the bug falls off the edge of the turntable (without jumping), how will the angular velocity of the turntable change?

A circular turntable is rotating freely about a vertical axis. There is no friction at the axis of rotation. (a) A bug, initially at the center of the turntable, walks out to the rim and stops. How will the angular momentum of the system (turntable plus bug) change? How will the angular velocity of the turntable change? (b) If the bug falls off the edge of the turntable (without jumping), how will the angular velocity of the turntable change?
 

Grade:10

1 Answers

Jitender Pal
askIITians Faculty 365 Points
6 years ago
(a) When the bugs walks out to the rim, the rotational inertia of the turntable-bug system will increase. The increase in rotational inertia of the system makes it difficult for the turntable to rotate and therefore its angular speed decreases with time.
(b) If the bugs fall of the turntable without jumping, the rotational inertia of the turntable would decrease. This makes it easier for the turntable to rotate and it start moving with large angular speed, which is in accordance with the law of conservation of angular momentum.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free