37. B SM MMH Multiple-Concept Example 10 offers useful background for problems like this. A cylinder is rotating about an axis that passes through the center of each circular end piece. The cylinder has a radius of 0.0830 m, an angular speed of 76.0 rad/s, and a moment of inertia of o.615 kg · m². A brake shoe presses against the surface of the cylinder and applies a tangential frictional force to it. The frictional force reduces the angular speed of the cylinder by a factor of two during a time of 6.40 s. (a) Find the magnitude of the angular deceleration of the cylinder. (b) Find the magnitude of the force of friction applied by the brake shoe.

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A: Given, n1=1 (air) n2=1.5(glass) i=58 degree(angle of incidence)

Q: given -diagram -reasoning -steps ans. is 0.043A

A:

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Q: How do you estimate the displacement graphically?

A: You can use the procedures below to visually estimate the displacement:Graph the object's motion in…

Q: (4 & Vo 145° X=450 7²50m X=137 m Find Vo=? total time t

A:

Q: kinematic diagram

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Q: Please elaborate on how to find direction of accelarator in part a)

A:

Q: Looking at the image below, find the displacement using A.) unit vector notation and B.) magnitude…

A: Given :

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A: Let the two long, parallel wires separated by d =  0.20 m carry an equal current of I = 1.5 A in the…

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A:

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A:

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Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.