A 7 kg object is attached to the end of a 75 cm long rope with insignificant mass, performs uniform circular motion. Find the torque acting on the object as the object rotates in the horizontal plane with an angular acceleration of 8 rad/s.

A 7 kg object is attached to the end of a 75 cm long rope with insignificant mass, performs uniform circular motion. Find the torque acting on the object as the object rotates in the horizontal plane with an angular acceleration of 8 rad/s.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter12: Static Equilibrium And Elasticity

Section: Chapter Questions

Problem 12.3CQ: (a) Give an example in which the net force acting on an object is zero and yet the net torque is...

See similar textbooks

Related questions

Q: While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one…

Q: A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above…

Q: The moment of inertia for a rigid body that is rotating at an angular acceleration of 4 rad/s2, on…

Q: Under the influence of the torque M=20 N*m body acquires angular velocity v=10t+5 . What is the…

A: Write the given values of this problem. TorqueM=20 N.mAngular velocityv=10t+5

Q: • As an ice skater begins a spin, his angular speed is 3.04 rad>s.After pulling in his arms, his…

A: The initial angular momentum, The final angular momentum,

Q: What is the rotational inertia of a cylinder of radius 2.93 m and height 6.17 m and a density of 3…

A: Given: The radius of the cylinder is 2.93 m. The height of the cylinder is 6.17 m. The density is…

Q: Find the magnitude of the net torque (in N.m) on the wheel shown in the Figure about the axle…

A: Solution: Given that F =36 N a = 5 cm b = 20 cm

Q: A particle is located at F= (4.0i + 3.5j+5.8k) m. A force F = (8.6j – 3.8k) N acts on it. What is…

A: The torque on the particle can be represented as, Here, F and r represent the applied force, and…

Q: A bicycle wheel, of radius 0.3300 m and mass 3.000 kg (concentrated on the rim), is rotating at…

A: Given: The radius of the wheel is 0.33 m. The mass of the wheel is 3 kg. The initial angular speed…

Q: An object of mass 0.2 kg is moving in a circle of radius 2 m with translational acceleration a = 5…

Q: A 349 kg merry go round is set in motion by applying a 207 N force tangentially at the rim. For how…

Q: A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above…

A: Write the given values with suitable variables. α=37.5 rad/s2I=0.75 kg.m2r=1.8 cm=0.018 m Here, α,…

Q: An athlete at the gym holds a 2.0 kg steel ball in his hand. His arm is 70 cm long and has a mass of…

Q: please answer

A: Given information: Here, m is the weight’s mass, rw is the distance of the weight from the knee…

Q: An athlete at the gym holds a 2.0 kg steel ball in his hand. His arm is 70 cm long and has a mass of…

A: Answer:- Given m1 = 2 kg x1 = 70 cm = 0.7 m m2 = 4 kg The centre of mass of the arm is at the…

Q: A constant net torque is applied to an object. Which one of the following will NOT be constant? A)…

A: Torque is given as , T = Iα (1) From equation (1) we can say that if torque is constant that…

Q: This grindstone has a mass of 60 kg, a diameter of 0.600 m and has a moment of Inertia (I) of 4.50…

A: Given: The mass having the value of 60 kg, a diameter of 0.600 m and has a moment of Inertia (I) of…

Q: A couterclockwise torque of +1.10 N•m is applied to a bicycle wheel of radius 26 cm and mass 0.72…

A: Torque = 1.1 Nm Radius of ring = 26 cm = 0.26 m mass = 0.72 Kg Moment of inertia of a ring = M R 2…

Q: A merry-go-round accelerates from rest to 0.63 rad/s in 39 s Assuming the merry-go-round is a…

A: Given, Initial angular speed, Final angular speed, Time, Mass of merry-go-round, Radius of…

Q: The blades of a ceiling fan have a moment of inertia of 0.16 kg.m2 and an angular acceleration of…

A: Given data, moment of inertia of the blades = 0.16 kg.m2 angular acceleration = 7.0 rad/s2

Q: A merry-go-round accelerates from rest to 0.63 rad/srad/s in 39 ss. Assuming the merry-go-round is a…

A: Given: Initial angular velocity = 0 rad/s. Final angular velocity (v) = 0.63 rad/s. Time taken to…

Q: Assignment 3 1. 30 N - 30 N 5.0 5.0 ст cm 20 N 20 N The 20-cm-diameter disk can rotate on an axle…

A: Introduction: Torque is a twisting force that is responsible for the rotation of object, and torque…

Q: If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning…

A: Given:- ω = 0.66 rev/s. t = 11 s. ι = 0.34 kg⋅m^2.

Q: The magnitude of net torque (in N.m) about a point at coordinate 7 = (2î + 1) m when two forces :F =…

A: Given : F1→=7j^NF2→=(1i^-3j^)NPosition vector, r→=(2i^+1j^)m

Q: The moment of inertia of a 0.912-kg bicycle wheel rotating about its center is 0.165 kg m2. What is…

A: Moment of inertia of ring is,

Q: While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one…

A: (a) Since we need to calculate the net torque on the lower leg, so we take our system to be lower…

Q: A merry-go-round starts at rest and accelerates up to an angular speed of 1.9 rad/s in 5.0 seconds.…

A: Given information: Here, m is the mass of the marry-go-round, d is the diameter of the…

Q: Find the net torque on the wheel in Figure about the axle through O, taking a=10.0 cm and b=25.0 cm.

A: Given the value of 'a' = 10 cm. Given the value of 'b' = 25 cm.

Q: While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one…

Q: Determine the magnitude of the angular acceleration and applied torque if a uniform disk has the…

Q: . If moment of inertia of an object is 2:5kgm2 about its rotation axis. How much torque (constant)…

A: GIven data The moment of inertia is given as I = 2.5 kgm2. The angular speed is given as N = 400…

Q: A constant torque is applied to a rigid body whose moment of inertia is 4.40 kg-m2 around the axis…

Q: If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning…

Q: Find the net torque on the wheel in the figure below about the axle through O, taking a = 7.00 cm…

A: Write the equation for torque

Q: Find the net torque on the wheel as shown about the axle through O, taking a = 10.0 cm and b = 25.0…

A: Consider anti-clockwise direction to be positive The net torque on the wheel

Q: A metal hoop lies on a horizontal table, free to rotate about a fixed vertical axis through its…

A: Given: The magnitude of the torque is 1.75x10-2 N.m. The time interval is 3 s.

Q: A disk has a moment of inertia of 3.0 X 10-4 kg.m? and rotates with an angular speed of 7.3 rev/sec.…

Q: Find the net torque on the wheel in the figure below about the axle through O, taking a = 12.0 cm…

Q: A massless tether with a masses tied to both ends rotates about a fixed axis through the center. Can…

A: The total acceleration is, a→=ac2+at2 The centripetal acceleration is, ac=vt2r=rω2r=rω2 The…

Q: A disk has a moment of inertia of 3.0 X 10-4 kg.m2 and rotates with an angular speed of 9 rev/sec.…

Q: please answer

Q: Find the net torque on the wheel in Figure about the axle through O perpendicular to the page,…

Q: A 0.65-m-diameter solid sphere can be rotated about an axis through its center by a torque of 11.0 m…

A: Given data The diameter of the solid sphere is given as d = 0.65 m. The torque is given as T = 11…

Q: Find the net torque on the wheel in the figure below about the axle through O, taking a = 11.0 cm…

A: Given Data: The inner radius is, a = 11.0 cm The outer radius is, b = 25.0 cm. The three forces…

Concept explainers

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

Question

MCQ question

17-
A7 kg object is attached to the end of a 75 cm long rope with insignificant mass,
performs uniform circular motion. Find the torque acting on the object as the
object rotates in the horizontal plane with an angular acceleration of 8 rad/S.
a)
30 N.m
b)
34 N.m
32 N.m
d)
26 N.m.
e)
28 N.m
Boş bırak

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

An automobile engine can produce 200 N m of torque. Calculate the angular acceleration produced if 95.0% of this torque is applied to the drive shaft, axle, and rear wheels of a car, given the following information. The car is suspended so that the wheels can turn freely. Each wheel acts like a 15.0 kg disk that has a 0.180 m radius. The walls of each tire act like a 2.00-kg annular ring that has inside radius of 0.180 m and outside radius of 0.320 m. The tread of each tire acts like a 10.0-kg hoop of radius 0.330 m. The 14.0-kg axle acts like a rod that has a 2.00-cm radius. The 30.0-kg drive shaft acts like a rod that has a 3.20-cm radius.
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?
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?
(a) Is it possible to calculate the torque acting on a rigid object without specifying an origin? (b) Is the torque independent of the location of the origin?
What is- the magnitude of the angular acceleration of a 25.0-kg disk of radius 0.800 m when a torque of magnitude 10.0 N m is applied to it? (See Section 8.5.)
A student rides his bicycle at a constant speed of 3.00 m/s along a straight, level road. If the bikes tires each have a radius of 0.350 m, (a) what is the tires angular speed? (See Section 7.3.) (b) What is the net torque on each tire? (See Section 8.5.)
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
When tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of the bolt. (a) How much torque are you exerting in newton meters (relative to the center of the bolt)? (b) Convert this torque to foot pounds.
A grindstone increases in angular speed uniformly from 4.00 rad/s to 12.0 rad/s in 4.00 s. (a) Calculate the grindstones angular acceleration. (b) Through what angle does it turn during that time? (See Section 7.2.)
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. She produces an angular acceleration of 30.00 rad/s2 and her lower leg has a moment of inertia of 0.750kg-m2 What is the force exerted by the muscle if its effective perpendicular lever arm is 1.90 cm?
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?
A constant net torque is exerted on an object. Which of the following quantities for the object cannot be constant? Choose all that apply. (a) angular position (b) angular velocity (c) angular acceleration (d) moment of inertia (e) kinetic energy