Question

A body of mass root 3 kg is suspended by a string from a rigid support. The body is pulled horizontally by a force F until the string makes an angle of 30 degree with the vertical. the value of F and tension in the string are

Answer 1

just see the picture , if there is any problem please ask in comment section

Answer 2

Hence the tension in the string is 20 N and the force is 10 N.

Explanation:

We are given that:

• Mass of body = 3 Kg
• Horizontal force = F
• Angle = 30°

Solution:

F = T cos (30°)

mg = T sin (30°)

√3 g = T √3 / 2

T = 2  x g = 2 x 10 = 20 N

F = T x 1/2

F =  20 x 1/2 = 10 N

Hence the tension in the string is 20 N and the force is 10 N.