Question
A person lifts a 4.3 kg cement block a vertical
distance of 1.3 m and then carries the block
horizontally a distance of 5.3 m.
The acceleration of gravity is 9.81 m/s
2
.
a) Determine the work done by the person
in the process.
Answer in units of J
distance of 1.3 m and then carries the block
horizontally a distance of 5.3 m.
The acceleration of gravity is 9.81 m/s
2
.
a) Determine the work done by the person
in the process.
Answer in units of J
Answers
MathMate
There is no work done by moving the load horizontally.
The only work done is the lifting, which is equivalent to the potential energy gained by the block given by:
Ep=mgh.
The only work done is the lifting, which is equivalent to the potential energy gained by the block given by:
Ep=mgh.
Anonymous
YOlO