Answer:
Newton's Laws Applied to Collisions. Newton's third law of motion is naturally applied to collisions between two objects. ... Thus, if the colliding objects have unequal mass, they will have unequal accelerations as a result of the contact force that results during the collision.
Explanation:
Answer: True I'm not very good at Chemistry, I'm sorry if it's wrong, I'm sure it is true though. I hope it helped!!
Answer:
Explanation:
Let m be the mass of each car
mass of three cars = 3m
Kinetic energy of 3 coupled cars = 1/2 x 3m x 28²
= 1176 m
mass of 4 coupled cars = 4m
Its velocity v = 3m x 28 / 4m ( using conservation of momentum law )
= 21 m /s
Kinetic energy of 4m mass
= 1/2 x 4m x 21²
= 882 m
Loss of energy
= 1176 m - 882 m = 294 m
percentage of loss
=( 294 / 1176 ) x 100
= 25 %
This energy appears in the form of sound , heat etc on collision .