1.21 A body with a hole in it has a thickness d and is attracted along...

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1.21 A body with a hole in it has a thickness d and is attracted along a smooth rod by an electromagnet. The acceleration that the sleeve receives can be written a = k/ (L - x) ?, where k is a measure of the magnetic field strength. Determine the speed at which the sleeve strikes the magnet if the sleeve is released from rest from position x = 0. L- 1.21 A body with a hole in it has a thickness d and is attracted along a smooth rod by an electromagnet. The acceleration that the sleeve receives can be written a = k/ (L - x) ?, where k is a measure of the magnetic field strength. Determine the speed at which the sleeve strikes the magnet if the sleeve is released from rest from position x = 0. L-