How much work does it take to raise a #19 kg # weight #15 m #?
1 Answer
Dec 16, 2015
Explanation:
Work is the vector dot product of the applied force and the displacement moved in the direction of the force.
The lifting force overcomes the downward weight force of the object and is given by
Assuming it is lifted directly upwards in a straight line, the force acts in the direction of the displacement, and hence the work done is