It’s half the mass of the object by its velocity ^2
Explanation :
Using the law of conservation of energy
When two cars collide with each other then the momentum is same before collision and after collision but energy is changed after collision in form of heat and sound.
We know this collision is inelastic collision.
In Inelastic collision, when two objects collide with each other then the momentum is conserved but kinetic energy is not conserved.
Answer:
1.pulley,screw,inclined plane
2.using simple machine properly with right way and precautions
Explanation:
3.cuz if they are not used properly they can cause injuries to organs
Answer:
A. The sum of all the forces acting on an object.
