Sonic boom can also be created from an atomic bomb going off.
Answer:
the speed of sound is 331.3 meters per second (1,087 feet per second) in dry air at 0 degrees Celsius
Given that,
Mass of the stone, m = 400 g = 0.4 kg
Initial speed, u = 20 m/s
It is climbed to a height of 12 m.
To find,
The work done by the resistance force.
Solution,
Let v is the final speed. It can be calculated by using the conservation of energy.

Work done is equal to the change in kinetic energy. It can be given as follows :

So, the required work done is 32.99 J.