In a new system of units, 1 unit of mass = 2 kg, 1 unit of length = 5 m, and 1 unit of time = 5 s. Express 2 Newton in terms of this new system of units. Find X if 2 N = X new units of force.

Correct answer: 5

Solution

1 new unit of force = 1 new_M * 1 new_L / (1 new_T)² = 2 kg * 5 m / (5 s)² = 10/25 N = 0.4 N. So 2 N = 2/0.4 = 5 new units.

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