Asked by saalim

Two spheres of mass 2 kg and 3 kg are attached to the ends of a light rigid rod of length 1.0 m. What is the moment of inertia of the system about an axis perpendicular to the rod and
(i) passes through the centre of the rod
(ii) passes through the 2 kg sphere
Answered by Mohamad A.Awad
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 36.1 m/s in a time of 7.70 s. The mass of the car and riders is 5.62 × 103 kg. Find the average net force exerted on the car and riders by the magnets ?
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