### Find the magnitude of the acceleration of the boy

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Q. An emf is induced in a conducting loop of wire 1.25 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 4.14 s, and the local 0.120 T magnetic field is perpendicular to the plane of the loop.

Q. A 66 kg boy and a 43 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.

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