An object with a mass of m=4.7 kg is attached to the free end of a light string wrapped around a reel of radius R=0.270 m and a mass of M=3.00 kg. The reel is a solid disc, free to rotate in a vertical plane about the horizontal axis passing through its center as shown in figure below. The suspended object is released from rest 7.00 m above the floor. Determine tension in the string. Determine the magnitude of the acceleration of the object. Determine the speed with which the object hits the floor.

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British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.