Friday
March 27, 2015

Homework Help: physics

Posted by Stehlin on Tuesday, February 19, 2013 at 9:15am.

Consider the system shown, with m1 = 2.0 kg,
m2 = 3.0 kg, and = 30o. The force F acts
horizontally to the left and the kinetic coefficient of
friction between m1 and the incline is k = 0.40. The
mass m2 is moving up at a constant speed.
(a) What is the magnitude of F?
(b) If the mass m2 moves up a distance of 2.0 m,
what is the work done by the following forces
acting on m1: (i) the force F, (ii) the normal force
due to the incline, (iii) the tension, (iv) friction, and
(v) gravity? What is the net work done on m1 by all the forces?
(c) If the mass m2 moves up a distance of 2.0 m, what is the work done by the following forces
acting on m2: (i) the tension and (ii) gravity? What is the net work done on m2 by all the forces?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - Consider the system shown, with m1 = 2.0 kg, m2 = 3.0 kg, and α...
PHYSICS - A 4 kg block is pushed along the ceiling with a constant applied force...
Physics - Consider the figure below. (Let w1 = 150 N and w2 = 38.0 N.) (a) What ...
physics - box full of books rests on a wooden floor. The normal force the floor...
Physics - I push a stack of six books (each weighting 4 kg) horizontally across ...
Physics - A force F acts to the right on a 4.81 kg block. A 2.53 kg block is ...
physics - A 2.0-N force acts horizontally on a 10-N block that is initially at ...
Physics - A 6.40 kg block rests on a 12.5 kg block as shown in the diagram. The ...
Physics - Two people push on a box that has a mass of 10kg, the person on the ...
Physics - Two people push on a box that has a mass of 10kg, the person on the ...

Members