- #1

iloveannaw

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## Homework Statement

Find the tension in each string. Two spheres both of mass, m = 15kg. Diameter of each is 25cm. Each string 35cm long. Spheres are suspended on strings with other end attached to same point on ceiling. Therefore spheres are touching. Hopefully, that is not too difficult to understand, sorry no picture!

Taking g as 10 m/s/s

**2. Homework Equations plus attempt**

A vertical line drawn from point where string attached to ceiling makes a triangle with string + radius (hypotenuse) and radius of ball (opposite side).

hypotenuse = 0.35 + 0.125 = 0.475 meters

therefore angle alpha = arcsin(opp/ hyp) = arcsin(0.125 / 0.475)

Tension in each secondary string = T2 = mgcos(alpha) = 145 Newtons

However answer at back of book gives 152N - how can this be? g cannot be greater than 10! Really would like some help