hafsa a: 3 A 4.8kg block on a 39O inclined plane is acted on by a horizontal force of 46N (see the figure below) . The coefficient of kinetic friction between block and plane is 0.33.
(a)What is the acceleration of the block if it is moving up the plane?
(b)With the horizontal [...]
shariq n: Three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force . The magnitude of the tension in the string between blocks B and C is = 3.00 . Assume that each block has mass = 0.400 .
Read the rest of this entry »iqbalkhanayesha: friction between the ground and the block is 0.46. assume 25% of the work done by friction is converted into thermal energy that goes into the block.
A. Work done for you
B. Work done by friction
C. Change in temperature of the block
sana: Three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force . (Intro 1 figure) The magnitude of the tension in the string between blocks B and C is = 3.00 . Assume that each block has mass = 0.400 .
Read the rest of this entry »John: You are pushing a 7·kg block across a table so that it is speeding up with an acceleration of 5·m/s2.
(a) What is the net force acting on the block?
N.
(b) In addition to your push, the only other horizontal force acting on the block is friction. If your push has a magnitude of [...]