Chemistry, asked by heba81, 1 year ago

In a new system, unit of length is 6 m, unit of mass
is 2 kg, unit of time is 2 minute. In the new system
of units, unit of pressure is equal to
(1) 12 kgm mirr2 (2) 24 kgmrmin-2
(3) za kgm ' min?
(4) ia kgm "min

Answers

Answered by abhi178
0

The unit of pressure is equal to 1/12 kgm⁻¹min⁻². hence, the correct option is (1)

In a new system, unit of length is 6m, unit of mass is 2kg, unit of time is 2 min. In the new system of units, unit of pressure is equal to ..

  1. 1/12 kgm⁻¹min⁻²
  2. 24  kgm⁻¹min⁻²
  3. 1/24  kgm⁻¹min⁻²
  4. 12  kgm⁻¹min⁻²

We know, pressure the force acting in a specific surface area.

i.e., pressure = force/area

∴ unit of pressure = unit of force/unit of area

= (unit of mass × unit of acceleration)/(unit of length²)

= (2kg × unit of length/unit of time²)/(6m)²

= (2kg × 6m/(2min)²)/36m²

= 12/144 kgm⁻¹min⁻²

= 1/12 kgm⁻¹min⁻²

Therefore the unit of pressure is equal to 1/12 kgm⁻¹min⁻².

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