Answer:
Explanation:
Given
mass of automobile 
velocity of automobile 
If the automobile crashes into the brick wall then it's kinetic energy is converted into thermal and demolishing energy to wall.
Car completely stops as it crashes into the wall so Energy converted into demolition and thermal energy


Answer:
Rest and motion are relative terms. In simple terms, an object that changes its position is said to be in motion while the opposite action causes an object to be at rest.
Explanation:
Force is transferred from the moving ball to the stationary ball.
Answer:
you havent given the full question
but im guessing momentum
momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity or the impetus gained by a moving object.
Explanation:
as the child is pushed, it gathers momentum as its weight allows it be pushed forward, and the velocity is the speed driven by the amount of force the parent pushes on the child whilst they are swinging. The momentum is the result of this action
the equation that links these factors together are
p = mv
p = momentum
m = mass
v = velocity
hope i got it right ._.
Most likely it would be C not completely sure