A cannonball and a marble roll smoothly from rest down an incline. Is the cannonball’s (a) time to the bottom and (b) translational kinetic energy at the bottom more than, less than, or the same as the marble’s?

Q: An electric motor starts from rest and reaches its normal rotational speed of 1,740 rpm in 1.0 s,…

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Q: A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing…

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Q: Two horses are side-by-side on a merry-go-round: one at the edge, and one near the axis. Each horse…

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Q: An athlete in a gym applies a constant force of 50 N to the pedals of a bicycle to keep the rotation…

A: Length of pedal arm is r = 30 cm = 0.3 m Force applied on the wheel is F = 50 N

Q: A thin, hollow sphere of mass 1.70 kg and radius 0.640 m is rolling on a horizontal surface with a…

A: Given data The mass of the sphere is m=1.70 kg The radius of the sphere is r=0.640 m The angular…

Q: A circular saw is powered by a motor. When the saw is used to cut wood, the wood exerts a torque of…

A: Given data: Torque (τ) = 0.4 N.m Constant angular velocity (ω) = 19 rad/s Time (t) = 6.1 min…

Q: A spherical shell of radius 2.84 cm and a sphere of radius 6.97 cm are rolling without slipping…

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Q: A car steps into the stationary bucket of a well, so that both cat and bucket have a combined mass…

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Q: A circular saw is powered by a motor. When the saw is used to cut wood, the wood exerts a torque of…

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Q: A cylinder of mass 14.0 kg rolls without slipping on a horizontal surface. At a certain instant its…

A: Given, Mass of cylinder m = 14 Kg Speed v = 9 m/s   ( a ) Determine the translational kinetic energy…

Q: "The opposition that the body exhibits to having its speed of rotation about an axis altered by the…

A: The opposition that the body exhibits to having its speed of rotation about an axis altered by the…

Q: The centre of mass of a pitched baseball or radius 4.22 CM moves at 5 1.4 M/S .the ball's spins…

A: Rotational KE=1/2Iω2Transtational KE=1/2mv2

Q: Is rotational kinetic energy completely analogous to translational kinetic energy?What, if any, are…

A: Yes, the rotational and translational kinetic energy are exactly analogous.

Q: A pendulum swings as pictured. How fast was it moving at the bottom of its travel if at the top it…

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Q: lb) [Same equipment as in la)]. A string is wound around the shaft and a weight holder with some…

A: Given that:Mass of the dumbells, m=0.2 kgLength of the rod, L=20 cm=0.2 mDiameter of the rod, D=8…

Q: Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions about a…

A: Given : A point on a bicycle wheel completes exactly four revolutions around a fixed axis. To find :…

Q: As you are leaving a building, the door opens outward. If the hinges on the door are on your right,…

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Q: A wooden barrel, with a mass of 13 kg, is rolling across a horizontal floor without slipping. The…

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Q: We hang a body on a 2.0 m long string and lift it so that the string forms an angle of 40° with the…

A: Given data: Length of sting (L) = 2 m Angle = 40°  Need to determine the angular velocity when it…

Q: When a torque does work on a rotating rigid body, what is the effect on kinetic energy?

A: When a rigid body is rotating abound a fixed axis with an angular velocity w, then a torque is…

Q: A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the…

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Q: slipping on a flat surface as shown below. Starting from rest, the wheels move at an

A: Apply no condition of slipping for point of contact

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: If the net torque is zero, this implies that () the angular momentum is constant or conserved () the…

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Q: The ball rolls without slipping up the incline and continues rolling at a constant but lower speed.…

A: The initial velocity of the ball, vi = 2.62 m/s The initial position of the ball, hi = 0 m The final…

Q: A circular saw is powered by a motor.  When the saw is used to cut wood, the wood exerts a torque of…

A: Given data:  Torque (τ) = 0.7 N.m Constant angular velocity (ω) = 23 rad/s Time (t) = 7.3 min…

Q: A circular saw is powered by a motor. When the saw is used to cut wood, the wood exerts a torque of…

A: Torque applied (T) = 0.8 N-m Angular velocity (w) = 19 rad/s2 Time (t) = 7.6 × 60           t = 456…

Q: A spool consists of a cylinder with two circular disks glued on either end. It has mass m, moment of…

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Q: A gymnast on the uneven parallel bars is at rest, tipped at a 45° angle from the vertical. The…

A: Given data: Angle from the vertical. θ=450 Distance from hands to feet, R=1.8 m Centre of gravity is…

Q: A solid, uniform disk of radius 0.250 m and mass 55.0 kg rollsdown a ramp of length 4.50 m that…

A: Given data:Mass of the disk. M = 55.0 kgRadius of the disc, R = 0.250 mLength of the ramp, L = 4.50…

Q: A solid spherical ball starts from rest at an initial height of 1.7 m, and rolls down an incline.…

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Q: A solid sphere is roling on a surface. What fraction of its total kinetic energy is in the form of…

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Q: A pool ball is struck directly in its center so that it begins to slide across the table without…

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Q: a. Use only energy considerations and the fact that the log does not slip as it rolls to determine…

A: a) According to Conservation of energy  mgh= 12mv2+12I ω2 The rotational inertia of the log is given…

Q: A cylinder of mass 10.0 kg rolls without slipping on a horizontal surface. At a certain instant, its…

A: Given, Mass of the cylinder (M) = 10.0 kg Speed of center of mass = 10.0 m/s

Q: A constant net torque is exerted on an object. Which of the following quantities for the object…

A: Rotation and translation are 2 attributes associated with motion. Rotation is when body revolves…

Q: A circular saw is powered by a motor. When the saw is used to cut wood, the wood exerts a torque of…

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Q: A top is a toy that is made to spin on its pointed end by pulling on a string wrapped around the…

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Q: A uniform ceramic disk with a mass of 6.1 kg and a radius of 0.65 m rotates about its central axis.…

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Q: Moment of inertia is: O A. The point at which all forces appear to act. B. The rotational equivalent…

A: Explanation:-  Moment of inertia :- Moment of inertia is defined as the quantity expressed by the…

Q: A solid sphere rolls down an incline without slipping. At any instant while in motion, what is the…

A: The moment of inertia of a solid sphere is given by, I=25MR2  (1) Here, M is the of the sphere and R…