during a very quick stop, a car decelerates at 7.00m/s^2. A. what is the angular acceleration...

during a very quick stop, a car decelerates at 7.00m/s^2. A. what is the angular acceleration of it's 0.280-m- radius tires, assuming they do not slip on the pavement. B. how many revolutions do the tires make before coming to rest, given their initial velocity is 95.0 rad/s? C. how long does the car take to stop completely? D. what distance does the car travel in this time. E. what is the cars initial velocity? F. do these values obtained seem reasonable, considering that this stop happens very quickly?

Expert Solution

genius_generous answered 2 years ago

What is the angular acceleration and linear acceleration?

A rope of negligible mass is wound around a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N? What is the linear acceleration of the rope? Assume that there is no slipping.

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?

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?

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?

A bicyclist starting at rest produces a constant angular acceleration of 1.6 rad/s^2 for wheels that...

A bicyclist starting at rest produces a constant angular acceleration of 1.6 rad/s^2 for wheels that are 38 cm in radius. What is the bicycles linear acceleration? What is the angular speed of the wheels when the bicyclist reaches 11m/s? How many radians have the wheels turned through in that time? How far has the bicycle traveled?

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2?...

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2? rad/s. After the disk rotates through 20? radians, the angular speed is 3? rad/s. (a) What is the magnitude of the angular acceleration? rad/s2 (b) How much time did it take for the disk to rotate through 20? radians? s (c) What is the tangential acceleration of a point located at a distance of 3 cm from the center of the disk? m/s2

A car going at 24 ft/s decelerates at a constant 4ft/s^2 to come to a stop....

A car going at 24 ft/s decelerates at a constant 4ft/s^2 to come to a stop. a) Fill in the following table showing the velocity of the car every second. Fill in a zero velocity for any time after that at which the car comes to a rest. t = 0 1 2 3 4 5 6 7 v = 24 20 16 12 8 4 0 0 b) When does the car come to a stop? at t =...

Part A If a car has a linear acceleration of 1.8 m/s^2 and the radius of...

Part A If a car has a linear acceleration of 1.8 m/s^2 and the radius of its wheels is 0.33 m, what is the angular acceleration of the wheels? a. 0.18 rad/s 2 b. 0.59 rad/s 2 c. 5.5 rad/s 2 d. 9.8 rad/s 2 Part B Given the angular acceleration in the previous problem, how many revolutions does one of the car’s wheels complete in 10.0 s? Assume the car is initially at rest.

Discuss the following topics: 1. Rotational Dynamics : Angular displacement, Angular velocity, angular acceleration. 2. Rigid...

Discuss the following topics: 1. Rotational Dynamics : Angular displacement, Angular velocity, angular acceleration. 2. Rigid Body and Moment of Inertia 3. Angular Momentum, conservation of Angular Momentum and Torque with some examples of applications. 4. Mechanical Equilibrium and conditions of equilibrium 5. Elasticity, Plasticity and Hooke's Law 6. Parallel Forces and net torque 7. Coefficient of Elasticity, stress, and strain.

A car starts from rest and travels east with an acceleration of 4x10^-3 m/s^2. Another car...

A car starts from rest and travels east with an acceleration of 4x10^-3 m/s^2. Another car travels towards west at a constant speed of 70kph. The two cars are 100km apart. a. What is the time it takes for the two cars to meet b. time it takes for them to be 100km apart for the second time

Question