Homework Help: Physics

Posted by Eunice on Monday, February 6, 2012 at 6:35pm.

A wooden plank is inclined at and angle of 23 degrees above the horizontal. A 2.0 kg box attached to a rope is is pulled up the incline. The coefficient of kinetic friction between the box and the wooden plank is 0.15.
What does the tension in the rope is the box moves up the incline at a constant velocity?

Physics - bobpursley, Monday, February 6, 2012 at 7:32pm
gravity down the plank: mg*sinTheta
friction down the plank: mg*mu*cosTheta

So if it is moving up at constant velocity, then tension= sum of friction+gravitydownplank

Answer this Question

Related Questions

spring- physics - A 2.0-kg box rests on a plank that is inclined at an angle of ...
Spring Physics - A 2.0 kg box rests on a plank that is inclined at an angle of ...
Physics - A m = 1.85 kg box rests on a plank that is inclined at an angle of &...
PHYSICS HELP - A box rests on a plank that is inclined to the horizontal. As the...
PHYSICS Please Help - A box rests on a plank that is inclined to the horizontal...
physics - A 2.0kg box rests on a plank that is inclined at an angle of 65° ...
Physics - A disconcerted dog of a mass 7.80 kg is sliding down a frictionless ...
Physics - a 25 kg box is released from rest on a rough inclined plane tilted at ...
physics - A student wants to determine the coefficients of static friction and ...
PHYSICS - PLEASE HELP - A box of weight w=2.0 N accelerates down a rough plane ...

For Further Reading

First Name:
School Subject:
Answer: