A sphere of mass m and radius r is attached to the rim of a disk (mass M , radiu

Question

A sphere of mass m and radius r is attached to the rim of a disk (mass M, radius R). The disk is rotating counter-clockwise with a constant period T around an axis through the center of the disk. Neglect friction. Consider the directions A through I at the indicated position of the sphere.

What is the direction of the acceleration of the sphere?

Direction A

Direction B

Direction C

Direction D

Direction E

Direction F

Direction G

Direction H

Direction I

Zero, there is no acceleration of the sphere.

What is the direction of the velocity of the sphere?
Direction A
Direction B
Direction C
Direction D
Direction E
Direction F
Direction G
Direction H
Direction I
Zero, there is no velocity of the sphere.

please explain why

A sphere of mass m and radius r is attached to the rim of a disk (mass M, radius R). The disk is rotating counter-clockwise with a constant period T around an axis through the center of the disk. Neglect friction. Consider the directions A through I at the indicated position of the sphere. What is the direction of the acceleration of the sphere? Direction A Direction B Direction C Direction D Direction E Direction F Direction G Direction H Direction I Zero, there is no acceleration of the sphere. What is the direction of the velocity of the sphere? Direction A Direction B Direction C Direction D Direction E Direction F Direction G Direction H Direction I Zero, there is no velocity of the sphere. please explain why

Explanation / Answer

Constant period means constant speed.

So there is no tangential accelration.

There is only Centripetal Acc.

direction of centripetal acc. is always towards center.

direction of acc. is F ........Ans

-----------------------

Velocity is always tangential to rim's circumference.

So direction = A

(not D because disk is moving counterclockwise.)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.