If two balls collide with each other, they will move apart at the same speed if

A.) they had the same speed and the same mass when they collided

B.) they were traveling at the same speed when they collided

C.) they have the same mass

D.) they move apart at a right angle to each other

Question

Averie Sanders

Physics

22 July, 18:13

If two balls collide with each other, they will move apart at the same speed if

A.) they had the same speed and the same mass when they collided

B.) they were traveling at the same speed when they collided

C.) they have the same mass

D.) they move apart at a right angle to each other

+5

Answers (2)

Know the Answer?

Moshe Mullins · Answer 1

A.

if you have seen a newton's cradle this will make sense.

in order for both of them to travel at the same speed, the balls need to have the same mass and the speed to begin with tocontinue to travel at the same speed because mass can affect the impact of the force on the balls by each other, causing each ball to have different speeds.

Flowers · Answer 2

Answer a. would be correct. Since momentum is conserved, Δmv must be constant.

If two balls collide with each other, they will move apart at the same speed ifA.) they had the same speed and the same mass when they collidedB.) they were traveling at the same speed when they collidedC.) they have the same massD.) they move apart at a right angle to each other

If two balls collide with each other, they will move apart at the same speed if

A.) they had the same speed and the same mass when they collided

B.) they were traveling at the same speed when they collided

C.) they have the same mass

D.) they move apart at a right angle to each other