A hook of radius 2m weighs 100kg. It rolls along a horizontal floor so that its centre if mass has a speed of 20cm/s. How much work has to be done to stop it? a) 5 J b) 6 J c) 2 J d) 4 J
Q: 8: A sphere, I= 0.45 kg m' and r= 8 cm, is initially rotating at 22 rad/s. You put your hand on the…
A: Moment of Inertia = I = 0.45 kgm2 Radius = r = 0.08 m Initial angular velocity = ωi=22 rad/s Final…
Q: Question 5 The following figure shows a top view of a small 19.2 g bug standing at one end of a thin…
A: To solve this problem, we need to use conservation of momentum and conservation of energy. Given:…
Q: A hoop of mass 4 kg and radius 0.1 m is rolling without slipping. It has a translational speed of v=…
A:
Q: A horizontal vinyl record of mass 0.0759 kg and radius 0.116 m rotates freely about a vertical axis…
A:
Q: A uniform circular disk of moment of inertia 8.0 kg m2 is rotating at 4.0rad/s. A small lump of mass…
A:
Q: A disk that has a radius of r and mass of m is released from rest at the top of a 7 m tall ramp.…
A: Given that:- Height of ramp=H=7m
Q: Two spheres, one with the center core up to r = R/2 hollow and the other solid, have the same mass M…
A: Solution-
Q: A child of mass M is in a swing at the park. The chains have length L. The child is pulled back by…
A:
Q: 25.00 m long nylon rope is wound around a bobbin with a radius of 0.75 m and a mass of 2.50 kg. The…
A:
Q: In the figure, a small 0.460 kg block slides down a frictionless surface through height h-1.05 m and…
A:
Q: Two wheels of moment of inertia 3.6 kg m and 7.6 kg.m2 are set in rotation with angular speed 9.6…
A: Given information: Here, I1 and I2 are the MOI of the two wheels with initial angular speed ω1 and…
Q: Three students in lab are trying to predict which of the following objects will reach the bottom of…
A: The height of ramp is h=1.60 m. The radius of each body is r=0.16 m. The mass of each body is m=0.28…
Q: A uniform solid cylinder of mass M and radius R rolls without slipping down an inclined frictional…
A: Step 1:Given that solid cylinder roll without sleeping it means : v=ωR Here, R=Radius of…
Q: 4) If the rolling sphere then encounters a sloping ramp angled at 15° from the horizontal, to what…
A: Given Mass m = 2.5 kg Radius R = 1.25 m Initial velocity = u = 7.5 m/s
Q: A father fashions a swing for his kids out of a long rope that he fastens to the limb of a tall…
A: We have Radius r = 7.40 m Tangential speed v = 8.75 m/s We have to find angular speed
Q: tationary horizontal disk of radius R and Mass M is dropped on top of a rotating disk of same radius…
A:
Q: A cord is wrapped around a pulley that is shaped like a disk of mass m and radius r. The cord's free…
A:
Q: 7. A solid sphere of mass M and radius R starts from rest at the top of an inclined ramp, and rolls…
A: The objective of the question is to understand the energy transformation in the rolling sphere and…
Q: Consider the father pushing a playground merry-go-round in Figure shown. He exerts a force of 250 N…
A: Given: Force, F = 250 N mass, m = 50 kg radius, r =1.5 m
Q: PROBLEM 4 As illustrated in the figure, a uniform solid sphere rolls on a horizontal surface at 25…
A:
Q: A 40-kg cylinder pulley with a radius of 0.2 m rotates at a constant angular speed of 4 rad/s. What…
A:
Q: Find the total kinetic energy of a rolling bowling ball that has a mass of 4 kg and a radius of 0.17…
A:
Q: A 16-kg block is attached to a cord that is wrapped around the rim of a flywheel of diameter 0.40 m…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Find the rotational kinetic energy of a spinning (not rolling) bowling ball that has a mass of 12 kg…
A: mass of bowling ball (m) = 12 kg Radius of ball (r) = 0.20 m Velocity (v) = 5 m/s
Q: A 100 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.220 m/s.…
A:
Q: A bowling ball of mass 7.15 kg is rolling at 2.50 m/s along a level surface. (a) Calculate the…
A:
Q: 8: A sphere, I= 0.45 kg m' and r= 8 cm, is initially rotating at 22 rad/s. You put your hand on the…
A:
Q: A uniform rod of mass 0.7 kg and length 2.1 m is free to rotate about one end. If the rod is…
A: The center of mass of the rod (H) is located above the horizontal. The equation of center of mass of…
Q: What object only has rotational kinetic energy? And not translational/linearly kinetic energy
A: An object having pure rotation can have rotational kinetic energy only. EXAMPLE: A wheel having…
Q: An object of mass 1.5 kg does rotational motion. Its angular velocity is 30 rpm and the radius of…
A: Kinetic energy of the object in rotational motion Krot=12Iω2=12mr2ω2
Q: A disk of M = 5kg, radius R = 3m is rotating %3D %3D counterclockwise about its center with an…
A:
Q: A 2.0 kg cat (not shown) is on the outer radius (R2) of a ring that can rotate about its center like…
A: Given: The mass of the cat is 2.0 kg. The inner radius of the ring is 0.80 m. The outer radius of…
Q: Small bodies of mass m, and m₂ are attached to opposite ends of a thin rigid rod of length L and…
A:
Q: A solid cylinder of radius d-0.5m and mass M-4kg is released from rest at the top of an incline…
A: Given that:- Radius of the cylinder,d=0.5mMass of the cylinder,M=4kgRadius of the…
Q: 1.40 m is started from rest by a constant horizontal force of 45 N applied tangentially to the…
A: Solution
Q: A diver makes 2.5 revolutions on the way from a 11- m-high platform to the water. Assuming zero…
A: It is given that
Q: Suppose a light cable is wrapped around a solid cylinder with mass 50Kg and diameter 0.12m. The…
A:
Q: Item 11 The pulley in (Figure 1) has radius 0.160 m and moment of inertia 0.380 kg - m². The rope…
A: Given that Radius of pulley, R=0.160m Moment of inertia of the pulley, I=0.380Kg m^2 Bigger block…
Q: A 600-g solid sphere has a diameter of 10cm rotates at 600 revolution pero minute about an axis…
A: Solution
A hook of radius 2m weighs 100kg. It rolls along a horizontal floor so that its centre if mass has a speed of 20cm/s. How much work has to be done to stop it?
a) 5 J
b) 6 J
c) 2 J
d) 4 J
Step by step
Solved in 2 steps
