Sunday
November 23, 2014

Homework Help: Physics

Posted by Josh on Saturday, January 11, 2014 at 6:44pm.

Two uniform solid spheres have the same mass of 3 kg, but one has a radius of 0.25 m while the other has a radius of 0.8 m. Each can rotate about an axis through its center.

(a) What is the magnitude τ of the torque required to bring the smaller sphere from rest to an angular speed of 300 rad/s in 15 s?
Nm

(b) What is the magnitude F of the force that must be applied tangentially at the sphere's equator to provide that torque?
N

(c) What is the corresponding value of τ for the larger sphere?
Nm

(d) What is the corresponding value of F for the larger sphere?
N

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - Two spheres are cut from a certain uniform rock.One has radius 4.50 cm...
College Physics - A bowling ball (mass = 4.4 kg, radius = 0.11 m) and a billiard...
Physics - Two spheres are cut from the same uniform rock. One has a radius r1...
college physics - Two solid spheres A and B are made from the same material. The...
college physics - Two solid spheres A and B are made from the same material. The...
physics - Two solid spheres A and B are made from the same material. The mass of...
physics - 5. A bowling ball (mass = 7.2 kg, radius = 0.13 m) and a billiard ball...
Physics - A bowling ball (mass = 7.2 kg, radius = 0.14 m) and a billiard ball (...
physics - A bowling ball (mass = 7.2 kg, radius = 0.12 m) and a billiard ball (...
physics - Consider two solid uniform cylinders that have the same mass and ...

Search
Members