What is mechanical energy ?

Show that mechanical energy of a body sliding down freely along a smooth inclined plane is conserved.

A bullet of mass m moving with a horizontal velocity v entered a block of mass M. As a result , the block and the bullet start moving together. Show that, after the impact, m/(M+m) part of the kinetic energy of the bullet is available as mechanical energy. What happens to the rest of the energy?

What is geothermal energy ?

A particle of mass 5g is executing SHM. The velocity of the particle when it crosses the midpoint of its motion is 10cm*s^(-1) . What will be its total mechanical energy?

The time period of a simple pendulum is 2 s. The mass of its bob is 10 g and the bob is oscillating with an amplitude of 4 cm. What is the total mechanical energy of the bob?

Write about the different forms fo mechanical energy .

State and prove law of conservation of mechanical energy in a free fall with a necessary diagram.

How is the total mechanical energy of a simple pendulum related to the length of the pendulum?