Question

Find the value of 90 joule /minute on a system which has 100g, 100 cm and 1 min as fundamental units

Answer 1

work =fs
f=mg
=100×10×1/000N
=1n
w=1×1/100m
=0.01

Answer 2

Answer:

Concept :

The International System of Units' derived unit of energy is the joule. It is equivalent to the amount of work that occurs when a mass is displaced by a force of 1 newton over a distance of 1 metre in the direction of the force application. It is also the energy lost as heat when a one-ampere electric current flows through a one-ohm resistance for one second. It bears James Prescott Joule's name, an English physicist (1818–1889)

Explanation:

System has 100 g, 100 cm and 1 min

To find:

The value of 90 joule/minute

Solution :

x = 1 $(\frac{100}{10} ^{1})$ $(\frac{100}{100}^{2})$$(\frac{1}{90} ^{3})$

x = 1 × 10 × 1 × $90^{3}$

x = 10 × 729000

x = 7290000

x = 7.29 × $10^{6}$

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