Calculate the work done by a 57 N force pushing a 0.025 kg pencil 0.25 m against a force of N.
Answers
Answered by
2
Answer:
Total force applied
=
47
N
Assuming that direction of movement of pencil and applied force is same.
Work done by force in moving the pencil
W
=
Force
×
Distance through which force moves
⇒
W
=
47
×
0.25
=
11.75
J
.-.-.-.-.-.-.-.-.
In case we are asked useful work done then we calculate net force used for pushing the pencil:
Net force used for pushing the pencil
=
47
−
23
=
24
N
Assuming that direction of movement of pencil and net force is same.
Useful Work done by force in moving the pencil
W
u
=
Force
×
Distance
⇒
W
u
=
24
×
0.25
=
6
J
Similar questions