Question

In a new system the unit of mass is  kg, unit of length is  m and unit of time is  s. The value of 1J in this new system is

Answer 1

Answer:

In a new system, the unit of mass is m kg, unit of length is l m and unit of time is t s. The value of 1 joule (J) in this new system is _______.

Now, as the question says :-

Mass = m kg

Length = l m

Time = t s

Now, We know that 1 J = kgm²/s²

Hence,

New mass = m kg.

1 kg = m¹.

Similarly,

New time = t s.

1 s = t^{-1}

But we need 1 s² = t^{-2}.

And,

New length = l m.

1 m = m¹

At last, 1 m² = l².

The new value of 1 J is m¹ l² t^{-2}.

Answer 2

Answer:

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