Applied Mechanics and Graphic Statics - Interview Questions and Answers

86. A rope is wrapped twice around a rough pole with a coefficient of friction 'A . It is subjected to a force F1 at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is

87. One Newton is equivalent to

88. The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to

89. A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is

90. A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is