a mass of 10 kg is suspended from a spring balance .it is pulled aside by a string so that it an angle 60 with the vertical.the new reading of the balance is ??

20kg. Wt

To find the new reading of the spring balance, we need to consider the forces acting on the mass.

1. Weight:
The weight of the mass, acting vertically downwards, can be determined using the formula W = mg, where "m" is the mass (10 kg) and "g" is the acceleration due to gravity (approximately 9.8 m/s^2). Therefore, the weight of the mass is given by W = 10 kg × 9.8 m/s^2 = 98 N.

2. Tension:
When the mass is pulled aside by a string, it creates tension in the string. The tension is directed along the string, opposing the weight of the mass. Let's denote the tension as T.

3. Vertical Component of Tension:
Due to the angle of 60 degrees with the vertical, the tension can be split into two components: vertical and horizontal. The vertical component of tension (Tvertical) balances out the weight of the mass, as the system is in equilibrium.

Since the tension balances the weight vertically, Tvertical = W = 98 N.

Now, let's find the new reading of the spring balance which measures the tension. The tension measured by the spring balance will be equal to the magnitude of the vertical component of tension, Tvertical.

Therefore, the new reading of the balance is 98 N.