A solid disk rolls down a ramp. Linear and rotational kinetic energy is recorded, as well as velocity. A hole is then drilled in the disk, the same data is recorded. Which has a higher velocity? Which has a higher rotational kinetic energy? Which has a higher linear kinetic energy?
A solid disk rolls down a ramp. Linear and rotational kinetic energy is recorded, as well...
QUESTION 3** Suppose the original solid disk now slides (rather than rolls) down the incline, which now has a frictionless surface. Compared with the case where it rolls without slipping, the total kinetic energy of the disk the bottom of the incline will be (a) smaller. (b) the same. (c) larger.
A solid, uniform disk of radius 0.250 m and mass 53.7 kg rolls down a ramp of length 4.20 m that makes an angle of 12.0° with the horizontal. The disk starts from rest from the top of the ramp. (a) Find the speed of the disk's center of mass when it reaches the bottom of the ramp. m/s (b) Find the angular speed of the disk at the bottom of the ramp. rad/s
If a solid sphere rolls down a ramp (where the angle of the ramp θ is 34 degrees, what will its linear acceleration be?
A disk of m=5 kg and radius r=2 m starts from rest and rolls down a 20 degree incline from an initial height of 50 m. What is the linear velocity of the disk as it reaches the bottom of the incline? What is the rotational kinetic energy of the disk at the halfway point between the positions 1 and 2? If it takes 1.2 seconds for the disk to reach the bottom of the incline, find the magnitude of...
A solid ball with m=1.6 kg and radius 3.8 cm rolls a distance 9.2 m down a ramp that is inclined by an angle 22.2° with respect to the horizontal. At the bottom of the ramp, what is its rotational kinetic energy? The answer is 15.59 J but i'm unsure how to arrive at this.
An
80 kg thin disk rolls down a plane. It has an angular velocity of
ω=5 rad/sec and a velocity of v=2.5 m/sec. The disk has a radius of
500 mm. Calculate the kinetic energy of the disk.
n. An 80 kg thin disk rolls down a plane. It has an angular velocity of o=5 rad/sec and a velocity of v=2.5 m/sec. The disk has a radius of 500 mm. Calculate the kinetic energy of the disk 0=5 rad/sec G...
An object rolls down a hill such that 2/5 of its kinetic energy is rotational. Determine an expression for the object's moment of inertia in terms of its mass, m, and radius, r. (Use any variable or symbol stated above as necessary.)
A solid sphere rolls in released from rest and rolls down an incline plane, which is 2.0 m long and inclined at a 30° angle from the horizontal. (a) Find its speed at the bottom of the incline. (Remember that the kinetic energy in rolling motion is the translational kinetic energy ½ Mv2 of the center, plus the rotational K.E. ½ Iω2 about the center. Also remember that v = ωr if the sphere rolls without slipping.) (b) Find the...
Physics I Pre-Lab Assignment: Rotational Kinetic Energy On a blank piece of paper (lined or computer, nothing torn out of a notebook), please answer the questions below. The assignment is due before lab starts. 1. When an object rolls down an incline, its kinetic energy is composed of both rotational and translational terms. Write out the equation for total kinetic energy with rotational and translational components. Label the terms to identity which is rotational and which is translational. 2. A...
A 1.50 kg solid, uniform disk rolls without slipping across a level surface, translating at 4.50 m/s. If the disk's radius is 0.480 m, find the following. (a) the disk's translational kinetic energy (in J) J (b) the disk's rotational kinetic energy (in J) J