Question

Why are negative exponents used?

Answer 1

negative exponents are used to represent the denominator or say divisor or to how many times the number is to be divided by the divisor

for e.g.(10*19^-2)

in this e.g. we have to divide the number 10 2 times by 19

i.e. in short we can say that (10/361)

it is also used in physics for e.g.

1)velocity =displacement/time

we write it as v=s*t^-1

2)for acceleration we write

the S.I. unit as (m.s^-2)