Question

A ball of mass m1=0.250 kg and velocity v1=5.00 m/s
[E] collides head-on with a ball of mass m2=0.800 kg that is
initially at rest. No external forces act on the balls.

a. Show what is conserved through the appropriate formula if the
collision is elastic.

b. What are the velocities of the balls after the
collision?

Answer #1

A ball of mass 0.250 kg that is moving with a speed of 5.5 m/s
collides head-on and elastically with another ball initially at
rest. Immediately after the collision, the incoming ball bounces
backward with a speed of 3.1 m/s . Calculate the velocity of the
target ball after the collision. Calculate the mass of the target
ball.

A ball of mass 2 kg is moving with a velocity of 12 m/s collides
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the velocity of the 6 kg ball after the collision. (both balls are
elastic)

A block of mass m1 = 1.20 kg moving at v1 = 1.20 m/s undergoes a
completely inelastic collision with a stationary block of mass m2 =
0.500 kg . The blocks then move, stuck together, at speed v2. After
a short time, the two-block system collides inelastically with a
third block, of mass m3 = 2.60 kg , which is initially at rest. The
three blocks then move, stuck together, with speed v3. Assume that
the blocks slide without...

A 5.0-kg mass moving at 8.0 m/s collides head-on with a 3.0-kg
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energy conserved?

The figure below shows a mass m1=5.2 kg moving with velocity
v1=47.6 m/s which collides with a mass m2=3.8 kg which is initially
at rest. The collision is completely inelastic and the masses slide
up a frictionless hill of mass of height h=11.1 m. What is the
kinetic energy K of the masses when they reach the top of the
hill.
K=727 J
K=3879 J
K=2425 J
K=2061 J
K=1576 J

The figure below shows a mass m1=5.1 kg moving with
velocity v1=41.6 m/s which collides with a mass
m2=2.6 kg which is initially at rest. The collision is
completely inelastic and the masses slide up a frictionless hill of
mass of height h=9.8 m. What is the kinetic energy K of the masses
when they reach the top of the hill.
K=655 J
K=3493 J
K=1419 J
K=2183 J
K=1856 J

A ball of mass 0.198 kg with a velocity of 1.60 î m/s meets a
ball of mass 0.306 kg with a velocity of -0.408 î m/s in a head-on,
elastic collision.
(a) Find their velocities after the collision.
V1?
V2?
(b) Find the velocity of their center of mass before and after
the collision.
Before?
After?

Ball 1, with a mass of 130 g and traveling at 10.0 m/s ,
collides head on with ball 2, which has a mass of 350 g and is
initially at rest. What are the final velocities of each ball if
the collision is perfectly elastic? (vfx)1 (vfx)2

Ball 1, with a mass of 140 g and traveling at 13 m/s , collides
head on with ball 2, which has a mass of 300 g and is initially at
rest.
What is the final velocity of the ball 1 if the collision is
perfectly elastic?
What is the final velocity of ball 2 if the collision is
perfectly elastic?
What is the final velocity of the ball 1 if the collision is
perfectly inelastic?
What is the final...

Ball 1, with a mass of 140 g and traveling at 12 m/s , collides
head on with ball 2, which has a mass of 350 g and is initially at
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What is the final velocity of the ball 1 if the collision is
perfectly elastic?
What is the final velocity of the ball 2 if the collision is
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What is the final velocity of the ball 1 if the collision is
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What is the...

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