Question

which of the following collisions is elastic?

a. two trucks collide and stick together

b. two equal mass billiard balls moving at the same speed
collide head-on and bounce back at the same speed

c. a ball bounces against the pavement, but does not return to
the same height as before

d. a tennis ball is hit by a racket. a loud noise is
produced.

Answer #1

Two identical balls, a and b, collide and stick together. The
balls, which have a mass of 2kg eac, were initially moving towards
each other. b ball A had a speed of 5m/s and ball B had a speed of
3m/s just before a collision. What is the magnitude of the change
of Ball As momentum produced by the collision

1.Two objects collide and stick together. The
collision [must be, may or may not be, cannot be] elastic.
2.Two objects collide and do not stick together. The collision
[must be, may or may not be, cannot be] elastic.
3.A moving object collides with an equal mass object initially at
rest. The first object stops after the collision. The collision
[must be, may or may not be, cannot be] elastic.
4. A moving object collides with another object of greater mass...

Two tennis balls undergo a head-on elastic collision. Under
which of these initial
conditions is it impossible for both balls to be moving in the same
direction after the
collision?
(a) the lighter ball is stationary and the heavier ball
is in motion.
(b) the two balls have the same mass and are initially
moving in the same direction, and they collide
because the faster-moving ball overtakes the
slower-moving one.
(c) the two balls have the same mass and only...

Two
billiard balls of the same mass collide frontally in an elastic
way. If one ball initially has a speed of 2.00m / s and the other
of 3.6m / s in the opposite direction. What will be the speeds and
directions after the collision?

two putty balls, one of mass M and the other of mass 2M, collide
and stick together. just before the collision, the ball with mass
2m is moving at an angle theta, with respect to the +y direction
with speed V, and ball with mass M is moving in the +x direction
with speed 2V. (derive and expression using the coordinate system
provided, in terms of system parameters, for the KE of the combined
object after collision.?)

Two pieces of clay are moving directly toward each other. When
they collide, they stick together and move as one piece. One piece
has a mass of 332 grams and is moving to the right at a speed of
1.16 m/s. The other piece has mass 606 grams and is moving to the
left at a speed of 0.934 m/s.
What fraction of the total initial kinetic energy is lost during
the collision? In other words what is (KEi -...

Two pieces of clay are moving directly toward each other. When
they collide, they stick together and move as one piece. One piece
having mass 300 300 g is moving to the right at a speed of 1 1 m/s.
The other piece has mass 600 600 g and is moving to the left at a
speed of 0.75 0.75 m/s.
a. Use momentum conservation to determine the velocity of the
combined clay piece after they collide. (Note: you can...

Two pieces of clay are moving directly toward each other. When
they collide, they stick together and move as one piece. One piece
has a mass of 324 grams and is moving to the right at a speed of
1.15 m/s. The other piece has mass 625 grams and is moving to the
left at a speed of 0.87 m/s. What fraction of the total initial
kinetic energy is lost during the collision? In other words what is
(KE?i???KE?f???? )/...

A cue stick exerts a force of 200 N for 10?3 s to a stationary
billiard ball (A) with
mass m. Then this billiard ball (A) hits another billiard ball (B)
with same mass
and which is at rest initially. After the collision, the billiard
ball (B) moves with a
speed vB =
p
2 m/s at an angle 45 degree with respect to the axis of the
incoming
ball (A). Assuming no friction between the billiard balls and the...

1.Imagine two balls colliding on a billiard table that is
frictionless. Decide which statement is correct and explain why:(a)
The total momentum of the system that contains only one of the two
balls is the same before and after the collision.(b) The total
momentum of the system that contains both of the two balls is the
same before and after the collision.
2.One object is at rest, and another is moving. The two collide
in one-dimensional, completely inelastic collision. In...

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