of rotation of the
Q: The Earth’s density increases with depth. If the Earth had the same mass and radius, and rotated…
A: Given. In case 1 one the density of earth is more at the core and less at the crust and in case 2…
Q: Walk me through the steps involved in turning a wheel.
A: Turning a wheel involves several steps. Here is a simplified overview of the process:
Q: The rotational inertia of an object depends on which of these? How fast it is spinningNone of the…
A: Moment of inertia is called rotational inertia. Its symbol is I and given by MR2 . I=MR2 So…
Q: a disk radius of 0.3m revolves around its geometrical center the linear velocity of a point on the…
A: Given: r = 0.3 m v = 4 m/s r'= 0.2 m
Q: If the polar ice caps of Earth were to melt, the oceans would be deeper, what effect would this have…
A: According to the principle of conservation of angular momentum, the angular momentum of the earth…
Q: Wht is th angular equivalent to suvat?
A: Angular equivalent variables are - Kinematic variable Angular equivalent Displacement s Angular…
Q: Give examples of joints where circumduction but not rotation can occur.
A: Saddle Joint allows circumduction but no rotation. Saddle joints are biaxial. They allow movement in…
Q: 2. Starting from rest, a point on a disk attains an angular speed of 33.3 revs/minute over an…
A:
Q: The axis of Earth makes a 23.5° angle with a direction perpendicular to the plane of Earth’s orbit.…
A: Magnitude of the force Here, L is the angular momentum of Earth and R is its radius.
Q: Why does preceesion occur when a torque is applied on the axis of rotation of a fast rotating disc?
A:
Q: Define Infinitesimal Rotations.
A: General meaning of infinitesimal is very small. So infinitesimal rotation is mean very small…
Q: Show where the rotational equation of motion (highlighted) comes from
A: The problem asks for the acceleration of a cylinder rolling down a wedge (both cylinder and wedge…
Q: Calculate the torque of a door upon applying 5 N of force to open it and has a lever arm of 2.3 m?
A: Given, Force = 5N Lever arm = 2.3 m The lever arm is the perpendicular distance from the axis of…
Q: The disk is remved and replaced with a hoop of the same mass and radius
A: Angular momentumL is given by,L=Iωwhere,ω is angular speedand I is moment of inertiaalso,Torqueτ is…
Q: How would you explain the process of turning a wheel?
A: Turning a wheel involves a combination of mechanical principles and the application of force to…
![Ex. 25 A coin kept on a
disc has its centre at a distance of 0.25 m from
the axis of rotation of the disc. If u = 0.2, find
the angular velocity of th disc at which the
coin is about to slip off. (g = 9.8 m/s²)
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