Question

A helium-filled balloon is attached to a 100 m long string. The string is tied to a hook on the ground and it makes an angle of 60° with the ground, as shown below. What is the height of the balloon from the ground?

Answer 1

The answer is either 100 m, 70.72 m, 50 m or 86.6 m.

Answer 2

sin 60 =p/100
3^.5/2 .100 =p
p=86.60

Answer 3

Thanks!