11.106. If n = number of members andy = number of joints, then for a perfect frame, n =

12.99. A single force and a couple acting in the same plane upon a rigid body

13.107. A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

14.119. The C.G. of a right circular solid cone of height h lies at the following distance from the base

15.97. A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of