At t = 0, a flywheel has an angular velocity of 6.2 rad/s, an angular acceleration...

At t = 0, a flywheel has an angular velocity of 6.2 rad/s, an angular acceleration of -0.18 rad/s2, and a reference line at θ0 = 0. (a) Through what maximum angle θmax will the reference line turn in the positive direction? What are the (b) first and (c) second times the reference line will be at θ = θmax/5? At what (d) negative time and (e) positive time will the reference line be at θ = -7.7 rad?

Expert Solution

genius_generous answered 5 months ago

At t = 0, a flywheel has an angular velocity of 10 rad/s, an angular acceleration...

At t = 0, a flywheel has an angular velocity of 10 rad/s, an angular acceleration of -0.44 rad/s2, and a reference line at ?0 = 0. (a) Through what maximum angle ?max will the reference line turn in the positive direction? What are the (b) first and (c) second times the reference line will be at ? = ?max/4? At what (d) negative time and (e) positive time will the reference line be at ? = -8.0 rad?

A wheel has an initial angular velocity of 1 rad/s and undergoes an angular acceleration of...

A wheel has an initial angular velocity of 1 rad/s and undergoes an angular acceleration of 10 rad/s^2. (a) How many radians does it rotate in 4 sec? (b) What is its angular velocity at this time?

1. A flywheel is initially rotating at 30 rad/s and has a constant angular acceleration. After...

1. A flywheel is initially rotating at 30 rad/s and has a constant angular acceleration. After 8.0 s it has rotated through 460 rad. Its angular acceleration in rad/s is: 2.Ten seconds after an electric fan is turned on, the fan rotates at 6000 rev/min. Its average angular acceleration in rad/s2 is: 3.The rotational inertia of a disk about its axis is 0.70 kgˑm2. When a 2.0-kg weight is added to its rim, 0.50 m from the axis, the rotational...

A gear has an angular velocity equal to 20 rad/s initially, but it speeds up to...

A gear has an angular velocity equal to 20 rad/s initially, but it speeds up to 40 rad/s in 5.0 seconds, while experiencing angular acceleration that is constant. Compute the number of turns the gear has undergone during those 5.0 seconds? 28 32 52 39 20 24

A flywheel turns through 22 rev as it slows from an angular speed of 3.0 rad/s...

A flywheel turns through 22 rev as it slows from an angular speed of 3.0 rad/s to a stop. (a) Assuming a constant angular acceleration, find the time for it to come to rest. = 92.15 s (b) What is its angular acceleration? _______rad/s2 (c) How much time is required for it to complete the first 11 of the 22 revolutions? _________ s

A flywheel turns through 30 rev as it slows from an angular speed of 5.5 rad/s...

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A wheel, starting from rest, has a constant angular acceleration of 0.1 rad/s2. In a 2.4-s...

A wheel, starting from rest, has a constant angular acceleration of 0.1 rad/s2. In a 2.4-s interval, it turns through an angle of 120 rad. How long has the wheel been in motion at the start of this 2.4-s interval?

A wheel rotates with a constant angular acceleration of 3.0 rad/. If the angular speed of...

A wheel rotates with a constant angular acceleration of 3.0 rad/. If the angular speed of the wheel is 2 rad/s at t = 0, through what angular displacement does the wheel rotate in 2 s? 10 rad. 6 rad. 15 rad. 4 rad. 12 rad. Based on question number 3, through how many revolutions has the wheel turned during this time interval? 4 rev. 3 rev. 1.6 rev. 5 rev. 2 rev. Based on question number 3, what is...

A bowling ball with a 12 cm radius has an initial angular velocity of 5.0 rad/s....

A bowling ball with a 12 cm radius has an initial angular velocity of 5.0 rad/s. Sometime later, after rotating through 5.5 radians, the bowling ball has an angular velocity of 1.5 rad/s. What is the average angular velocity of the bowling ball? What is the average linear velocity of the bowling ball? what is the angular deceleration?

Find (a) the angular velocity (rad/s) and (b) the linear velocity (miles/hour) of a person standing...

Find (a) the angular velocity (rad/s) and (b) the linear velocity (miles/hour) of a person standing in Sylmar (latitude 34 degrees north on Earth). Take R of Earth to be 4000 miles. Ans should be about (a) 7.27 X 10-5 rad/s (b) ~ 900 mi/hr

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