10 The driving wheel of a car travelling at a constantvelocity has a torque of 137N m applied to it bythe axle that drives the car (Figure 4.26). The radiusof the tyre is 0.18 m. Calculate the driving forceprovided by this wheel.dions ono lo vlinobnogsbai0.18 mstlo auprolFigure 4.26: For Question 10.

Answered: Image /qna-images/answer/0316e92d-bda9-4744-bd3b-651e8207ebf4.jpg

Answered: 10 The driving wheel of a car…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.2: Rotational Dynamics

Problem 27PP

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Give an example in which anal forte exerts a large torque. Give another example in which a large force exerts a small torque.
Suppose you exert a force of 180 N tangential to a 0.280-m-radius 75.0-kg grindstone (a solid disk). (a)What torque is exerted? (b) What is the angular acceleration assuming negligible opposing friction? (c) What is the angular acceleration if there is an opposing frictional force of 20.0 N exerted 1.50 cm from the axis?
Suppose just two external forces act on a stationary, rigid object and the two forces are equal in magnitude and opposite in direction. Under what condition does the object start to rotate?
A worker applies a torque to a nut with a wrench 0.500 m long. Because of the cramped space, she must exert a force upward at an angle of 60.0 with respect to a line from the nut through the end of the wrench. If the force she exerts has magnitude 80.0 N, what magnitude torque does she apply to the nut?
An object is acted on by a single nonzero force of magnitude F. (a) Is it possible for the object to have zero acceleration a? (b) Is it possible for the object to have zero angular acceleration ? (c) Is it possible for the object to be in mechanical equilibrium?
This problem considers additional aspects of example Calculating the Effect of Mass Distribution on a Merry-Go-Round. (a) How long does it take the father to give the merry-go-round an angular velocity of 1.50 rad/s? (b) How many revolutions must he go through to generate this velocity? (c) If he exerts a slowing force of 300 N at a radius of 1.35 m, how long would it take him to stop them?
When you start the engine of your car with the transmission in neutral, you notice that the car rocks in the opposite sense of the engine's rotation. Explain in terms of conservation of angular momentum. Is the angular momentum of the car conserved for long (for more than a few seconds)?
A simple pendulum consists of a small object of mass 3.0 kg hanging at the end of a 2.0-m-long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string makes a 5.0 angle with the vertical. (b) Does the torque increase or decrease as the angle increases? Explain. Figure P8.6
question 2: A 1.0-kg grindstone in the shape of a uniform cylinder of radius 0,23m acquires a rotational rate of 18 rev/s from rest over a 6 0-s intervalat constant angular acceleration. Calculate the torque delivered by the motor? in pi = m.n
1. To tighten a bolt, you push with a force of 100 Nat the end of the wrench handle that is0.5 m from the axis of the bolt. (a) What torque are you exerting? (0.5M)(100N) = 50n/m of Torque (b) If you move your hand inward to be only 0.2 m from the bolt, how much force do youneed to exert to achieve the same torque? (0.8M)(100N) = 80n/m-50n/m = 30n/m more (c) Do your answers depend on the direction of your push relative to the direction of thewrench handle? Yes (90 degrees) perpendicular
1. Suppose you exert a force of 152 N tangential to a 0.284-m- radius 77.0-kg grindstone (a solid disk). What torque is exerted? 2. What is the angular acceleration assuming negligible opposing friction? 3. What is the angular acceleration if there is an opposing frictional force 21.7 N exerted 1.23cm from the axis?
ques: 1) If the torque required to remove the nut is 33.8 N-m, what force (in N) must be exerted on the end of the wrench to loosen the nut? Assume the wrench has a length of 28.2 cm and the force is applied perpendicularly. ques2) A wheel rotates with a constant angular acceleration. It has an angular velocity of 3.2 rad/s at time t = 0 s, and 2.0 s later has an angular velocity of 19.2 rad/s. What is the angular displacement (in rad) of the wheel during the time interval?

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10 The driving wheel of a car travelling at a constant velocity has a torque of 137N m applied to it by the axle that drives the car (Figure 4.26). The radius of the tyre is 0.18 m. Calculate the driving force provided by this wheel. iozon ed nes oions ono lo vlinsbnogobai 0.18 m