The average speed of the football is 15 meters per second. Just divide both of the numbers by 4 :)
Answer:
49.3 m/s
Explanation:
The momentum is defined as the product of the object velocity and its mass.
So the momentum of the truck is

For the car to have the same momentum, its speed must be

Answer:Colloids include gels and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifugtion
Explanation:they are homogenous/non crystalline