A fallen tree rose 2.75 m. Find the work done?

26.95 x m Joules

Explanation:

Given parameters:

Height of rise of tree = 2.75m

Unknown:

Work done by the tree = ?

Solution:

Work done by any body is the distance it moves as a result of applied force. It is expressed mathematically below;

Work done = Force x distance moved

In this kind of problem,

Distance moved = height of rise

Force = weight of tree = m g

Where m = mass of tree

g = acceleration due to gravity = 9.8m/s²

Now;

W = mgh

W = m x 9.8 x 2.75

W = 26.95 x m Joules

Since m, the mass of the tree is not given, we cannot solve the problem completely