A 6.0 kg block is pushed2.0 m up a vertical wall with constantspeed by a constan
ID: 1673377 • Letter: A
Question
A 6.0 kg block is pushed2.0 m up a vertical wall with constantspeed by a constant force of magnitude F applied at anangle of = 30° with the horizontal, as shownin the figure below. If the coefficient of kinetic friction betweenblock and wall is 0.30, determine the work done by each of thefollowing.(a) the force J
(b) gravity
J
(c) the normal force between block and wall
J
(d) By how much does the gravitational potential energy increaseduring the block's motion?
J
(a) the force J
(b) gravity
J
(c) the normal force between block and wall
J
(d) By how much does the gravitational potential energy increaseduring the block's motion?
J
Explanation / Answer
(a) What is the tension in the rope?N
(b) How much work is done by the rope on the sledge?
kJ
(c) What is the mechanical energy lost due to friction?
kJ