A 0.5kg puck slides to the right with a speed of 1.0m/s on a frictionless surface and collided with a rock of mass M which is at rest. After the collision, the 0.5kg puck recoils to the left with a speed of 0.5m/s and the rock with the mass M moves to the right with a speed of 0.5m/s. A.) Find M (to 4 significant figures) B.) What type of collision is this? (Justify your answer)
A 0.5kg puck slides to the right with a speed of 1.0m/s on a frictionless surface and collided with a rock of mass M which is at rest. After the collision, the 0.5kg puck recoils to the left with a speed of 0.5m/s and the rock with the mass M moves to the right with a speed of 0.5m/s.
A.) Find M (to 4 significant figures)
B.) What type of collision is this? (Justify your answer)
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Mass of the puck,
Velocity of puck before collision,
Velocity of puck after collision,
Mass of the rock, = ?
Velocity of rock before collision,
Velocity of rock after collision,
(A) Find the mass of rock,
(B) What type of collision is this?
(A) Find the mass of rock, :
For a collision, the momentum is always conserved, that is,
That is,
Substituting the values for above equation,
Rearranging the equation for calculating the mass of rock, we have,
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