Given, the girl and bicycle weight 125 N. She moves from point A to B. Find the velocity and the normal force at B if the velocity at A is 10 m/s and she stops pedaling at A. (Ans : 300.5 N) VA = 10 ft/s p= 50 ft 30 ft

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Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.