What is the torque about the origin of the force F=(51 + 3) − 7k)N if it is applied at thepoint whose position is 7 == (î- 6ĵ+ 4k)m.During a car race, the wheels of a Formula 1 car start spinning from rest. The angularvelocity of the wheels increases at a constant rate of w=(40.0t) rad/s, where t ismeasured in seconds.(a) What is the instantaneous angular velocity of the car's wheels at t = 2.5 seconds?(b) What is the angular acceleration of the wheels at that moment?

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What is the torque about the origin of the force F=(5î + 3) – 7k)N if it is applied at the point whose position is 7 = (î-6ĵ+ 4k)m. During a car ro

Elements Of Electromagnetics

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Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

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What is the torque about the origin of the force F=(51 + 3) − 7k)N if it is applied at the
point whose position is 7 =
= (î- 6ĵ+ 4k)m.
During a car race, the wheels of a Formula 1 car start spinning from rest. The angular
velocity of the wheels increases at a constant rate of w=
(40.0t) rad/s, where t is
measured in seconds.
(a) What is the instantaneous angular velocity of the car's wheels at t = 2.5 seconds?
(b) What is the angular acceleration of the wheels at that moment?

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