A block of mass 2 kg is pulled upwards by a force F = 40 N as shown in figure. Block is displaced by 2 m. Find work done by the applied force and the force of gravity on the block (Take g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
80 J -40 J
Weight 
Work done by the applied force 
. As the angle between force and displacement is 
, therefore or 
Similarly, work done by its weight 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
If the unit of force and length each be increased by four times, then the unit of energy is increas…
A man pushes a wall and fails to displace it. He does
The same retarding force is applied to stop a train. The train stops after 80 m. If the speed is do…
You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m.…
A body of mass m kg is lifted by a man to a height of one meter in 30 sec. Another man lifts the sa…
A force newton is applied over a particle which displaces it from its origin to the point metres.…