Question

A ball with a mass of 1.1 kg is initially at rest. It is struck by a second ball having a mass of 1.3 kg, initially moving with a velocity of 3.5 m/s toward the right along the x axis. After the collision, the 1.3 kg ball has a velocity of 2.7 m/s at an angle of 35? above the x axis in the first quadrant. Both balls move on a frictionless, horizontal surface. Do not assume that the collision between the two balls is elastic.

(a) What is the velocity (its magnitude and direction) of the 1.1 kg ball after the collision?

(b) What is the change in the total kinetic energy of the two balls as a result of the collision?

Answer #1

A ball with a mass of 0.615 kg is initially at rest. It is
struck by a second ball having a mass of 0.405 kg , initially
moving with a velocity of 0.275 m/s toward the right along the x
axis. After the collision, the 0.405 kg ball has a velocity of
0.215 m/s at an angle of 36.9 ? above the x axis in the first
quadrant. Both balls move on a frictionless, horizontal
surface.
What is the magnitude...

A 0.30-kg puck, initially at rest on a frictionless horizontal
surface, is struck by a 0.20-kg puck that is initially moving along
the x-axis with a velocity of 8.5 m/s. After the
collision, the 0.20-kg puck has a speed of 5.1 m/s at an angle
of
θ = 53°
to the positive x-axis.
(a) Determine the velocity of the 0.30-kg puck after the
collision.
magnitude
m/s
direction
° from the positive x-axis
(b) Find the fraction of kinetic energy lost...

A 0.300-kg puck, initially at rest on a horizontal, frictionless
surface, is struck by a 0.200-kg puck moving initially along the x
axis with a speed of 2.00 m/s. After the collision, the 0.200- kg
puck has a speed of 1.00 m/s at an angle of θ = 53.0° to the
positive x axis. (a) Determine the velocity of the 0.300-kg puck
after the collision. (b) Find the fraction of kinetic energy lost
in the collision.

A ball with a mass of 2 kg is initially moving to the right with
a speed of 3 m/s. It collides with a 5 kg ball moving to the left
with a speed of 1 m/s. The balls collide partially elastically: 70%
of the initial kinetic energy of the system is conserved in the
collision. Find the final velocity of each ball. The balls move
only along the x-axis. Show your work.

A 0.300-kg puck, initially at rest on a horizontal, frictionless
surface, is struck by a 0.200-kg puck moving initially along the
x axis with a speed of 2.00 m/s. After the collision, the
0.200-kg puck has a speed of 1.00 m/s at an angle of ? =
49.0° to the positive x axis.
(a) Determine the velocity of the 0.300-kg puck after the
collision.
(b) Find the fraction of kinetic energy transferred away or
transformed to other forms of energy...

A 0.477 kg puck, initially at rest on a horizon-
tal, frictionless surface, is struck by a 0.22 kg
puck moving initially along the x axis with
a speed of 2.5 m/s. After the collision, the
0.22 kg puck has a speed of 1.5 m/s at an
angle of 38◦ to the positive x axis.
Determine the magnitude of the velocity of
the 0.477 kg puck after the collision.

A ball with mass M = 5 kg is moving with speed V=10 m/s and
collides with another ball with mass m = 2.5 kg which is initially
stationary. There is no other force such as gravity acting on the
two balls. After the collision, both balls move at angle θ=30
degrees relative to initial direction of motion of the ball with
mass M = 5 kg. a) What are the speeds of the two balls after the
collision? b)...

A cue ball (mass = 0.170 kg) is at rest on a frictionless pool
table. The ball is hit dead center by a pool stick, which applies
an impulse of +1.20 N · s to the ball. The ball then slides along
the table and makes an elastic head-on collision with a second ball
of equal mass that is initially at rest. Find the velocity of the
second ball just after it is struck.
? m/s

A cue ball (mass = 0.140 kg) is at rest on a frictionless pool
table. The ball is hit dead center by a pool stick, which applies
an impulse of +1.40 N · s to the ball. The ball then slides along
the table and makes an elastic head-on collision with a second ball
of equal mass that is initially at rest. Find the velocity of the
second ball just after it is struck. m/s

Ball 1 has a mass of 0.1 kg and is moving with a speed of 2.5
m/s. It collides head-on with ball 2, which has a mass of 0.3 kg
ball and is initially moving toward ball 1 with a speed of 0.75
m/s. Assume a perfectly elastic collision. Calculate the velocities
of the two balls after their collision and the total change in the
momentum of the system. Be careful with your coordinate system in
your math! Give your...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 6 minutes ago

asked 8 minutes ago

asked 11 minutes ago

asked 16 minutes ago

asked 18 minutes ago

asked 19 minutes ago

asked 26 minutes ago

asked 28 minutes ago

asked 31 minutes ago

asked 32 minutes ago

asked 36 minutes ago

asked 38 minutes ago