Question

The value of acceleration due to gravity is $980cm{s}^{-2}$. What will be its value if the unit of length is kilometer and that of time is minute?

Answer 1

$g=980cm/s^2$

$1cm=\frac{1}{{10}^5}km1s=\frac{1}{60}min$

$g=980\times {10}^{-5}\times \left(60\right)\times \left(60\right)km/{min}^2$

$g=35.28km/{min}^2$