A horizontal disc rotates with a constant angular velocity ω ω about a vertical axis passing through its center. A small body m moves along a diameter with a velocity v. Find the force the disc exerts on the body when it is at a distance r located from the rotation axis.
A
mr ω ω 2 + 2mv ω ω
B
mg + 
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
The force mg is vertical, 2mv ω ω perpendicular to vertical plane and mr ω ω 2 outward along the diameter. The resultant force is
F = 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
A vessel containing water is given a constant acceleration a towards the right, along a straight ho…
A ship of mass initially at rest is pulled by a force of through a distance of 3 m. Assume that t…
The mass of a body measured by a physical balance in a lift at rest is found to be m. If the lift i…
Three weights W, 2W and 3W are connected to identical springs suspended from a rigid horizontal rod…
When forces are acting on a particle of mass m such that and are mutually perpendicular, then th…
The spring balance A reads 2 kg with a block m suspended from it. A balance B reads 5 kg when a bea…