Question

Which of the following statements is false?
a)Momentum is the product of mass and velocity.
b)Impulse is equal to the change in momentum.
c)Kinetic energy is conserved in all collisions.
d)Momentum is conserved in collisions provided no external force acts.

Answer 1

Answer:

c. Kinetic energy is conserved in all collisions .

Explanation:

the total kinetic energy of system of particles involved in the collision does changes .

kinetic energy is not conserved in all collisions because in some cases energy is converted to another form of energy that is heat etc .