1.

two identical spheres of radii 10cm each are placed in between two rigid walls as shown the spacing between the walls is 36cm the find the force of contact between the spheres if the weight of each sphere is W

Answer»

# CORRECT question should be-
TWO identical uniform frictionless spheres, each of weight W, rest as shown in Fig. at the bottom of a FIXED, rectangular container. The line of CENTERS of the spheres MAKES an angle 0 with the horizontal.

# Answer-
5/3 W

# Explanation-

The sphere at the top is in vertical equilibrium, therefore
N.sinϴ = W
N = W/sinϴ

You can calculate sinϴ from figure.
sinϴ=3/5

Contact forces between two spheres will be 5/3 W



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