The flywheel of a steam engine runs with a constant angular velocity of 230 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.74 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel during the slowdown? (b) How many revolutions does the wheel make before stopping? (c) At the instant the flywheel is turning at 115 rev/min, what is the tangential component of the linear acceleration of a flywheel particle that is 30.2 cm from the axis of rotation? (d) What is the magnitude of the net linear acceleration of the particle in (c)? (a) Number i (b) Number i (c) Number i (d) Number i Units Units Units Units

Q: The electrical resistance varies directly as the square of the voltage (V) and inversely as the…

A: V=12 V (voltage) P=4 W (power) R=36 ohms (resistance)

Q: b) Calculate the energy delivered to the ment at t 10, 30, and 80 ms. %3D

A: (b) part of this problem is solved. Given: The figures given is as follows:   Introduction: Power…

Q: 7.0 how many significant digits?

A: The zero after a decimal point is counted as a significant figure.

Q: D. Calculate the following with the correct number of sig figs. 1. 5.00 + 2.1 2. 901 11.90

A:

Q: If k = 0.207, how long will it take a battery to reach a 60% charge? Assume that the battery was…

A:

Q: This is the wrong answer. Also it needs 3 significant figures. Still wrong. Need to find area under…

A: From the graph it is clear that it is straight line passing through origin. So, the equation for…

Q: Convert minutes to units in 10-minute increments.

A: To convert minutes into units ,      1 hours = 60 minutes . this implies ,                 1 min…

Q: Organ pipe A, with both ends open, has a fundamental frequency of 300 Hz. The third harmonic of…

A:

Q: How many kw-hr of energy does a 40 Watt light bulb use in one hour?   B) FPL charges 10.8 cents…

A:

Q: - 40. A 2.00-kilogram mass is at rest on a horizontal surface. The force exerted by the surface on…

A: Part (40): Given: The mass of the object is 2 kg.

Q: QUESTION 6 A crate is sliding on a level surface with coefficient of kinetic friction, uk, while it…

A:

Q: In the figure, block 1 has mass m₁ = 480 g, block 2 has mass m2 = 560 g, and the pulley is on a…

A:

Q: P2 = 50 Pa U, = ??? P1 = 200 Pa Ah =10 m U, = 10 m/s

A:

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.