A large wooden turntable in the shape of a flat uniform disk has a radius of...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 m and a total mass of 140 kg . The turntable is initially rotating at 3.00 rad/s about a vertical axis through its center. Suddenly, a 80.0-kg parachutist makes a soft landing on the turntable at a point near the outer edge.
A. Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the parachutist as a particle.
B. Compute the kinetic energy of the system before the parachutist lands.
C. Compute the kinetic energy of the system after the parachutist lands.
D. Why are these kinetic energies not equal?
Homework Answers
Add Answer to:
A large wooden turntable in the shape of a flat uniform disk has
a radius of...
A large wooden turntable in the shape of a flat uniform disk has a radius of...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 m and a total mass of 120 kg. The turntable is initially rotating at 2.00 rad/s about a vertical axis through its center. Suddenly, a 75.0-kg parachutist makes a soft landing on the turntable at a point near the outer edge. Part A: Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the parachutist as a...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 and a total mass of 110 . The turntab...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 and a total mass of 110 . The turntable is initially rotating at 4.00 about a vertical axis through its center. Suddenly, a 80.0- parachutist makes a soft landing on the turntable at a point near the outer edge Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the parachutist as a particle.) Compute the kinetic...
A large wooden turntable in the shape of a flat uniform disk has a radius of...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.05 m and a total mass of 130 kg. The turntable is initially rotating at 3.40 rad/s about a vertical axis through its center. Suddenly, a 72.5-kg parachutist makes a soft landing on the turntable at a point near the outer edge. (a) Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the parachutist as a particle.)...
A large wooden turntable in the shape of a flat uniform disk has a radius of...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 in and a total mass of 1.40 x 102 kg. The turntable is initially rotating at 3.10 rad/s about a vertical axis through its center. Suddenly, a 70.0 kg parachutist makes a soft landing on the turntable at a point near the outer edge. Part A Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the...
Consider a turntable to be a circular disk of moment of inertia 0.142 kg⋅m2 rotating at...
Consider a turntable to be a circular disk of moment of inertia 0.142 kg⋅m2 rotating at a constant angular velocity 4.80 rad/s2 around an axis through the center and perpendicular to the plane of the disk (the disk's "primary axis of symmetry"). The axis of the disk is vertical and the disk is supported by frictionless bearings. The motor of the turntable is off, so there is no external torque being applied to the axis. Another disk (a record) is...
A turntable has a radius R and mass M (considered as a disk) and is rotating...
A turntable has a radius R and mass M (considered as a disk) and is rotating at an angular velocity W 0 about a frictionless vertical axis. A piece of clay is tossed onto the turntable and sticks d from the rotational axis. The clay hits with horizontal vel ocity component vc at right angle to the turntable’s radius, and in a direction that opposes the rotation. After the clay lands, the turntable has slowed to angular velocity W1 ....
A turntable has a radius of 0.80 m and a moment of inertia of 2.0 kg m2. The turntable is rotating with an angular velocity of 1.5 rad/s about a vertical axis though its center on frictionless bearings.
A turntable has a radius of 0.80 m and a moment of inertia of 2.0 kg m2. The turntable is rotating with an angular velocity of 1.5 rad/s about a vertical axis though its center on frictionless bearings. A very small 0.40-kg ball is projected horizontally toward the turntable axis with a velocity of 3.0 m/s. The ball is caught by a very small and very light cup-shaped mechanism on the rim of the turntable (see figure). a) What is the...
A frictionless pulley has the shape of a uniform solid disk of mass 2.40 kg and radius 10 cm
A frictionless pulley has the shape of a uniform solid disk of mass 2.40 kg and radius 10 cm. A 1.20 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (the figure ), and the system is released from rest. Part A How far must the stone fall so that the pulley has 4.80 J of kinetic energy? Part B What percent of the total kinetic energy does the pulley have?
6_1. A majorette in a parade is performing some acrobatic twirlings of her baton. Assume that the baton is a uniform ro...
6_1. A majorette in a parade is performing some acrobatic
twirlings of her baton. Assume that the baton is a uniform rod of
mass 0.120 kg and length 80.0 cm.
a. Initially, the baton is spinning about a line through its center
at angular velocity 3.00 rad/s. (Part A figure) What is its angular
momentum? Express your answer in kilogram meters squared per
second.
6_2. Learning Goal: To understand how to use conservation of
angular momentum to solve problems involving...
A merry-go-round, which may be approximated as a solid disk of mass 90.0 kg and radius...
A merry-go-round, which may be approximated as a solid disk of
mass 90.0 kg and radius 2.00 m, is originally at rest but free to
rotate in the horizontal plane about its center. A child applies an
external force of 20.0 N tangentially to the outer edge of the
merry-go-round, for a duration of 15.0 s.
(a) What is the final angular velocity of the merry-go-round?
(b) What is the average power supplied by the child in the
process?
(c)...
A large wooden turntable in the shape of a flat uniform disk has a radius of 2.00 in and a total mass of 1.40 x 102 kg. The turntable is initially rotating at 3.10 rad/s about a vertical axis through its center. Suddenly, a 70.0 kg parachutist makes a soft landing on the turntable at a point near the outer edge. Part A Find the angular speed of the turntable after the parachutist lands. (Assume that you can treat the...
6_1. A majorette in a parade is performing some acrobatic
twirlings of her baton. Assume that the baton is a uniform rod of
mass 0.120 kg and length 80.0 cm.
a. Initially, the baton is spinning about a line through its center
at angular velocity 3.00 rad/s. (Part A figure) What is its angular
momentum? Express your answer in kilogram meters squared per
second.
6_2. Learning Goal: To understand how to use conservation of
angular momentum to solve problems involving...
A merry-go-round, which may be approximated as a solid disk of
mass 90.0 kg and radius 2.00 m, is originally at rest but free to
rotate in the horizontal plane about its center. A child applies an
external force of 20.0 N tangentially to the outer edge of the
merry-go-round, for a duration of 15.0 s.
(a) What is the final angular velocity of the merry-go-round?
(b) What is the average power supplied by the child in the
process?
(c)...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago