Home
Class 12
PHYSICS
As shown in figure the tension in the ho...

As shown in figure the tension in the horizontal cord is 30 N. The weight W and tension in the string OA in Newton are :

Text Solution

Verified by Experts

Let `T_(1)` and `T_(2)` be the tensions in the strings OA and OB respectively.

According to lami.s theorem
`T_(1)/(sin 90^(@)) =T_(2)/(sin 150^(@)) =W/(sin 120^(@)) (T_(2)=30 N)`
on solving `w=30sqrt(3) N` and `T_(1) = 60 N`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise SHORT ANSWER TYPE QUESTIONS|6 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise VERY SHORT ANSWER TYPE QUESTIONS|10 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise EXERCISE-3 (Circular Motion)|7 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise very Short answer type question|15 Videos

Similar Questions

Explore conceptually related problems

In the shown figure the tension in the horizontal cord is 30N. Find the weight of the body B.

In the following figure, if the tension in the string AB is 51N, then the tension in the string BC will be :-

The tension T in the string shown in figure is

All the string in figure are massless. Tension in the horizontal string is 30N . Find W .

A blolck D weighing 300kg is suspended by means of two cords A and B as shown in the figure. W is a vertical wall and R a horizontal rigid beam. The tension in the string A in kg is :

For the system shown in figure, the tensions in the string

A uniform rod of mass m and length L is suspended with two massless strings as shown in the figure. If the rod is at rest in a horizontal position the ratio of tension in the two strings T_1/T_2 is:

(a) A box of weight 10sqrt(3) N is held n equilibrium with the help of two strings OA and OB as shown in figure-1. the string OA is horizontal. Find the tensions in both the stings. (b) If you can change location of the point A on the wall and hence the orientation of the string OA without altering the orientation of the string OB as shown in figure-II. what angle should the string OA make with the wall so that a minimum tension is developed in it?

Find the tension in the horizontal string PQ and the string QR in the given figure. [Take g=10m//s^(2) ]

A rod OA of mass 4 kg is held in horizontal position by a massless string AB as shown in figure. Length of the rod is 2 m . Find (a) tension in the string (b) net force exerted by hings on the rod. (g = 10 m//s^(2))