Monday
March 30, 2015

Homework Help: physics

Posted by ally on Friday, February 25, 2011 at 7:49pm.

Part 1
A block of mass 4 kg, which has an initial
speed of 8 m/s at time t = 0, slides on a
horizontal surface.Find the magnitude of the work that must
be done on the block to bring it to rest.
Answer in units of J.

Part 2
If a constant friction force of magnitude
5 Newtons is exerted on the block by the surface, find the magnitude of the acceleration of
the block.
Answer in units of m/s2.

Part 3
How far does the block slide before it comes
to rest?
Answer in units of m.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A block of mass 5 kg, which has an initial speed of 3 m/s at time t = ...
Physics - 1)How much work is done by a person lifting a 2 kg object from the ...
Physics - An aluminum block slides along a horizontal surface. The block has an ...
Physics - A bullet with a velocity of 200 m/s is shot at a 2-kg block resting on...
physics 221 - Question Part Points Submissions Used An 8.61-kg block slides with...
Physics 221 - A constant horizontal force of magnitude 18.0 N pushes a block of ...
physics - A block of mass 1.4kg is placed on a rough surface. the coefficient of...
Physics Classical Mechanics - A block of mass m=2 kg is initially at rest on a ...
Physics - A 4 kg block slides down a frictionless incline making an angle of 60...
physics - A physics student pulls a block of mass m = 23 kg up an incline at a ...

Members