Question

A rod of mass m and length l is made to stand at an angle of 60° with the vertical, potential energy of the rod in this position is ?

Answer 1

Answer:

x=

2

l

cos60°

As shown in the figure

=

4

l

Potential energy =mgx

=

4

mgl

Answer 2

Answer:

mgl/4

Explanation:

Potential energy is defined by it's position or as mechanical energy. For Example that a ball has when perched on the top of a Stash hill while it is about to roll down.

Mass of the head = m (Given)

Length of the god - 1 (Given)

Vertical angle = 60 (Given)

x = 1/2 cas 60° = 1/4

Potential energy - PE = mg x ₁ =mg x, where in is the total mass in kilograms, h is the height in meters and g is the ecceleration due to gravity.

=mgl/4

Thus,the potential energy of the rod in this position is mgl/4

Hope it helps and Please Mark me down as the Brainliest as I want to update my rank