# Physics

posted by .

two objects collide when sliding on a fricitonless horizontal surface. Which quantity is conserved during their collision?
a) velocity
b) momentum of both objects
c)energy
d) momentum of each object

isn't c) or b) correct? I really think it's c)

• Physics -

total momentum is conserved, b. Energy is usually lost in heat and change in entropy.

## Similar Questions

1. ### Physics

Object A has mass mA = 9 kg and initial momentum A,i = < 19, -7, 0 > kg · m/s, just before it strikes object B, which has mass mB = 12 kg. Just before the collision object B has initial momentum B,i = < 5, 6, 0 > kg · …
2. ### physics

Which of the following statements is true for an inelastic collision?
3. ### Physics

Which of the following statements is true for an elastic collision?
4. ### Physics

Two lumps of clay having equal masses and speeds, but traveling in opposite directions, collide and stick together. Which of the following statements about this system of lumps must be true?
5. ### physics

Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one?
6. ### Physics

Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one?
7. ### physics

Determine for each of the following statements whether it is always true or can be false. In a perfectly inelastic collision, the kinetic energy is conserved. Kinetic energy is conserved in an elastic collision. Two objects of different …
8. ### Physics

two objects move toward each other collide and separate. there was no net external force acting on the objects but some kinetic energy was lost. is momentum conserved ?
9. ### Physics

Consider an isolated system consisting of two masses, each of which has a velocity vector in two dimensions. When these two masses collide the total momentum of the system is conserved. (a) Show that if the total momentum of the system …
10. ### physics

Which one of these statements concerning elastic collisions is FALSE?

More Similar Questions