0.5 m 2 N 28. A disk with radius of 0.5 m is free to rotate around its center without friction. A string wrapped around the disk is pulled, as shown above, exerting a 2 N force tangent to the edge of the disk for 1 s. If the disk starts from rest, what is its angular speed after 1 s? (A) 0 rad/s (B) 1 rad/s (C) 4 rad/s (D) It cannot be determined without knowing the rotational inertia of the disk.

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Q: A projectile is thrown from a point O on the ground at an angle 45° from the vertical and with a…

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Q: FORCE 1 FORCE 2 F (N) F (N) 1.2 1.2- 1.0 1.0- 0.8 0.8- 0.6 0.4 0.2- 0.0- 0.0 0.6- 0.4- 0.2- ( (m)…

A: Work done is defined as the product of force and the displacement along that force. In a force and…

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A: Solution : Let us take the first derivative of the given position vector. r→=cost…

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Q: 10. Using D = 3x³yi-2x²y4z6j+y³z²k from problem #9 Find: VxD @ (4, 3, 2).

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Q: 40 kN 3 m 1m A MATHalino.com Figure P-351 Determine the resultant reactions at A and B.

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Q: P Top View 29. The figure above shows a rod that is fixed to a horizontal surface at pivot P. The…

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Q: Q13) If a 3.0 mm, b-4.0 mm, 21--60 aC, 22-80 BC, and q-30 nC in the figure, the magnitude of the…

A: Since you have asked to solve question 13, we will only solve question 13.

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Q: 33.A metal rod 40.0000-cm long at 55.0 °C is heated to 85.0 "C. The length of the rod is then…

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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.