Simple pendulum of mass 3 Kg is pulled aside through an angle of `60^(@)` to the vertical. Calculate the horizontal force and tension in the string.

Explanation

At equilibrium
H`=Tsin60^(@)`
`W=Tcos60^(@)`
where W=mg`=3xx9.8=29.4N`
`:." "T=W/(cos60^(@))=(29.4)/(0.5)`
`:.` T=58.8N
and horizontal force H=`58.8xx0.866`
=50.9N
Tension in the string =58.8 N