A boy pulls a wagon 30m along a sidewalk with a rope tension force of 80N .The force i directed 25" above the horizontal. how many work is done by the boy?
Answers
Answered by
0
Answer:
yes it was the same as the one who was a
Answered by
0
Given: T=80N
S=30m
θ = 25°
To find: work done by the boy in pulling the wagon
solution
from the question, it is clear that the force is directed 25° above the horizantal i.e
the angle between force and displacement is 25°
Therefore,
by using the formula
work done = F.d, where F is the force acting and d is the displacement
total work done by the force = F * dcosθ= 80 x 30cos25°
=2160J
Similar questions