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  4. In a new system of units, the net force applied on a block of mass 10 kg moving with acceleration 10 m / s 2 is given as 100 unit of force. When the same block is moving at a speed of 20 m / s, its kinetic energy become 20 unit of energy. A liquid has a surface tension of 10 SI units. What is the magnitude of its surface tension in new system? (Dimensional formula of surface tension is M L0 T-2.)

Q. In a new system of units, the net force applied on a block of mass moving with acceleration is given as unit of force. When the same block is moving at a speed of , its kinetic energy become unit of energy. A liquid has a surface tension of units. What is the magnitude of its surface tension in new system? (Dimensional formula of surface tension is .)

Physical World, Units and Measurements Report Error

Solution:

Let in new system, dimensions be amd
Given ...(i)
...(ii)
Solving (i) & (ii);

surface tension in SI unit

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