3. The thin, uniform rod shown below has negligible mass and and a length of 0.200 m. It is attachedto the floor by a frictionless hinge at point P. A horizontal spring with force constant k = 4.80 N/mconnects the other end of the rod to a vertical wall. The rod is in a uniform magnetic field of B = 0.340T directed into the plane of the page. There is a current of /= 6.50 A in the rod, as shown.a. Calculate the torque due to the magnetic force on the rod for an axis at point P. Do this by defininga differential magnetic force on the rod for a differential length dr at an arbitrary distance r frompoint P. Relate this differential magnetic force to its differential torque at point P. Then sum (i.e.,integrate) the contributions from the entire length of the rod to get the total torque on the rod.b. Consider Hooke's Law, which states that the force exerted by the spring when stretched orcompressed a length x is Fspring = kx. Now, given that the rod makes an angle of 53.0° with the floorwhen it is in equilibrium, find the length x and state whether the spring is stretched or compressed.× B X☑XPX53.0° x

Answered: Image /qna-images/answer/d644eb29-ddac-40c7-a0bf-7b931b2ef128.jpg

Answered: torque | bartleby

Similar questions

16. The moment of inertia ("rotational mass") of a propeller on a car is 6.67 kg m2. Calculate the torque ("rotational force") needed to rotate it from rest to 68 rad/sec in 2 seconds.
40. A ball swings around a pivot at a constant rate due to an applied force. If the applied force is increased by a factor of four in the direction of the pivot, the ball’s angular velocity willA. decrease by a factor of 2.B. increase by a factor of 2.C. decrease by a factor of 4.D. increase by a factor of 4.
Calculate the rotational inertia of a wheel that has a kinetic energy of 46.4 kJ when rotating at 267 rev/min. Number i Units
Calculate the rotational inertia of a wheel that has a kinetic energy of 44.1 kJ when rotating at 350 rev/min. Number i Units
15. What is the rotational analog of force? a) Angular momentum b) Angular velocity c) Moment of inertia d) torque
4. Describe what is meant by moment of inertia. What variables does it depend on? What role does it play?
7. A 45 N force is being applied to a lever a distance of 0.75 m away from the lever's axis of rotation at an angle of 60 degrees from the lever. Find the torque applied to the lever.
A rectangular bar is hinged at point O. The bar is 3.00 m long and 2.00 m wide. Find the torque resulting from the following force about an axis through point O: F1 = 1 N. Use a positive for a counterclockwise torque and a negative for a clockwise torque.
4) Express the radius and force vectors in unit vector notation (assuming the positive x direction is to the right, and the positive y direction is up). Then calculate the torque vector using the cross product. Express the answer a) in unit-vector notation, and b) as a magnitude and direction (the direction of the torque vector). 2.5 m 14 N
1. Calculate the net torque about point O for the two forces shown in the figure 15 N 6.7 N on the right. Assume the rod is massless. 38° Answer: 17 Nm clockwise 1.9 m 3.2 m