Question

find the value of 10 joules on a system which has 10cm, 100g, and 30 sec as the fundamental units

Answer 1

Energy = (1/2)mv2

so E is proportional to mv2

E = 10 J = 10 Kg (m/s)2

10 J = 10 Kg (m/s)2 = 10 x 1000 g x (100 cm /s)2

= 10 x 10 x (100g) x (10 x 10 cm / s)2

= 100 x (100g) x (10x30 x 10cm/30s)2

= 100 x (100g) x (300 x 10cm/30s)2

= 100 x (300)2 x (100g) (10cm/30s)2

= 9000000 x 100g (10 cm / 30s)2

= 9000000 new unit

Answer 2

Explanation:

Energy =(1/2)mv^2.

So, E is proportional to mv^2.

E= 10J = 10 Kg(m/s)^2.

10 J = 10 Kg(m/s)^2 = 10×1000g =(100cm/s)^2.

=10×10×(100g)×(10×10cm/s)^2.

=100×(100g)×(10×30×10cm/30s)^2.

=9000000×100g(10cm/30s)^2.

=9000000 new units.