Tuesday
October 21, 2014

Homework Help: AP Physics

Posted by jeff on Saturday, February 26, 2011 at 9:48pm.

15.
A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0 with the horizontal, as shown in the figure. The acceleration of gravity is 9.81 m/s2.
If the coefficient of kinetic friction between
the block and the wall is 0.30, find
a) the work done by the force on the block.
Answer in units of J.

b) the work done by gravity on the block.
Answer in units of J.

c) the magnitude of the normal force between the block and the wall.
Answer in units of N.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - a 5kg block is pushed 3m up a vertical wall with constant speed by a ...
science - A 2:35 kg block is pushed 1:57 m up a vertical wall with constant ...
physic - Part 1 A 3.0 kg block is pushed 3.0 m at a constant velocity up a ...
physics - A block is pressed against a vertical wall by a force , as the drawing...
Physics - Sanding block weighs 2.0 N and is pushed with a force of 3.0 N at an ...
Physics - A 20.0 kg crate is pushed across a rough floor for a distance of 90.0 ...
Physics - A block of mass 9.00 kg is pushed up against a wall by a force P that ...
physics - 1. A piece of rectangular block weighing 5 kg is pressed on a vertical...
Physics - A 20.0 kg crate is pushed across a rough floor for a distance of 90.0 ...
Physics - A 10 kg block is pushed across a rough surface by a 25N force the ...

Search
Members