AIIMIIT kinetic energy derivation and numericals

1.define kinetic energy
2.derive formula for kinetic energy
3.what are egs of bodies having kinetic energy
4.if a body of mass 10 kg moving with 2 m/s what is its ke
5.if body of mass 2 kgs starting from rest attain velocity of 20 m/s .find its ke
6. what is relation between ke and momentum
7,what is energy possed by bstone resting on ground
8.what is energy possed by aeroplane moving in air
9.what is ke of body of mass 10kg having momentum 2 kgm/s
10.what is momentum of body having ke 20j and mass 2 kg
11.what happens when a stone falling from height .what is energy conversion occurs
12.what is energies present when stone falling on nground at top ,middle and lower most points
13.find percentage increase in ke when body increase speed from 10 m/s to 20 m/s
14.find percentage ionc in ke if speed inc from 20,m/s to 30 m/s
15,find percentage decrease in ke if speed decrease from 30 m/s to 20 m/s
16. find percentage decrease in ke if speed decreases from 40 m/s to 30 m/s
17, if ke of body is 10j and mass remains same and speed is 20 m/s .find new ke if speed changes to 30 m/s
17.car of mass 700 kg moving with 20 m/s,cal its kE
18.ball moving with 50 m/s whose ke is 75  j.find massin grams