Question
A ball with mass M=1 kg is hanging from a wire with no mass and length...
A ball with mass M=1 kg is hanging from a wire with no mass and
length l=10 cm. The wire is tilted to angle α=30 degrees. It then
hits a vertical wall.
a) What is the velocity of ball V=? right before it hits the
wall?
b) Suppose that in collision with the wall the ball loosed a
fraction of its energy Ω=1/3. Up to what angle θ=? Does the wire
tilt as it tilts back up away from the wall?
c) If the length of the time of collision with the wall is t=0.1 s,
what is the average force of the wall exerted on the ball during
the collision?
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
A ball with mass of m=0.5 (Kg) has velocity of V1= 8 m/s and moves with...
A ball with mass of m=0.5 (Kg) has velocity of V1= 8 m/s and
moves with the angle of 45 degrees with respect to vertical line.
It hits the ground and bounce back with V2= 6 m/s with the same
angle with respect to ground . What is the change in ball's
momentum?
1. A rubber ball with a mass of 1.35 kg is stuck in a tree. To...
1. A rubber ball with a mass of 1.35 kg is stuck in a tree. To
knock it out, you throw a golf ball with a mass of 0.0450 kg at it.
The golf ball hits the rubber ball with a speed of 20.0 m/s and
bounces off with a speed of 10.0 m/s. The golf ball is moving in
the same direction horizontally after the collision as it was
before it hit the rubber ball. When the golf ball...
A ball, m1 = 0.1 kg, having initial velocity v1i = 0.5 m/s hits a stationary...
A ball, m1 = 0.1 kg, having initial velocity v1i = 0.5 m/s hits
a stationary ball in a glancing collision. After the collision the
balls have final speeds v1f = 0.4 m/s and v2f = 0.2 m/s and ball 1
bounces back at an angle of 110 degrees relative to its incident
trajectory.
a) Sketch diagrams of the balls before and after the collision.
Include a co-ordinate system and label all relevant angles and
velocities.
b) Write down algebraic...
A wooden plank of length L and mass M is hanging vertically attached to the ceiling...
A wooden plank of length L and mass M is hanging vertically
attached to the ceiling by a frictionless hinge. The plank is in
equilibrium, when struck by a bullet of mass m that has velocity
given by the equation below. The bullet hits the plank at a
distance D (D< L) from the ceiling and remains stuck in the
plank.
~v = vxˆi + vyˆj -> velocity of the bullet.
a) What is the angular acceleration of the plank...
A ball of mass 60g is dropped from a height of 3.4m it lands on top...
A ball of mass 60g is dropped from a height of 3.4m it lands on
top and the surface is not frictionless (Kinetic friction is 0.3).
The hight of the ramp is 1.8m and the ramp is tilted at an angle of
20 degrees.
a) What is the velocity of the ball at the top of the ramp
b) At the bottom of the ramp it collides with and sticks to a
ball of mass 73g. What is the velocity...
During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s...
During a collision with a wall, the velocity of a 0.200-kg ball
changes from 20.0 m/s toward the wall to 12.0 m/s away from the
wall. If the time the ball was in contact with the wall was 0.04 s
A.) What is the magnitude of the change of momentum of the ball?
B.) What is the magnitude of the average force exerted on the
ball?
A soft ball (m = 0.14 kg) moving horizontally to the right hits a wall with...
A soft ball (m = 0.14 kg) moving horizontally to the right hits
a wall with a speed of 16.2 m/s. After the collision the ball
bounces back and moves horizontally to the left at a speed of 14.4
m/s. If the collision lasts for 0.0015 s, what is the magnitude of
the (average) force exerted on the ball by the wall?
A pendulum consists of a small object hanging from the ceiling at the end of a...
A pendulum consists of a small object hanging from the ceiling
at the end of a string of negligible mass. The string has a length
of 0.78 m. With the string hanging vertically, the object is given
an initial velocity of 2.9 m/s parallel to the ground and swings
upward in a circular arc. Eventually, the object comes to a
momentary halt at a point where the string makes an angle
θ with its initial vertical orientation and then swings...
A ball, mass is 8 kg, is thrown from the top of a 30 m cliff...
A ball, mass is 8 kg, is thrown from the top of a 30 m cliff
with a velocity of 20 m/s straight up. The ball misses the cliff on
the way down. Ignore air resistance. Use work and conservation of
energy to find the following values.
a. what is the work done by gravity while the ball is in the
air?
b. what is the maximum height of the ball?
c. what is the magnitude of the velocity just...
A uniform metal rod, with a mass of 3.0 kg and a length of 1.1 m...
A uniform metal rod, with a mass of 3.0 kg and a length of 1.1 m
, is attached to a wall by a hinge at its base. A horizontal wire
bolted to the wall 0.55 mabove the base of the rod holds the rod at
an angle of 30 ? above the horizontal. The wire is attached to the
top of the rod.
(a) Find the tension in the wire
T = ________ N
(b) Find the hortizonal component...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 27 minutes ago
asked 32 minutes ago
asked 34 minutes ago
asked 55 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago