as you know answer of acceleration in ms⁻² = 7.6
change ms⁻² into km h⁻²
= 1m / s²....... (1)
1 m change int kg
= 0.001 km / s²
As s² = ( 1 / 3.6 ˣ 10³ h )²
so put values in ... (1)
= 0.001 km / ( 1 / 1.296 ˣ 10⁷ h)
= 0.001 km ˣ 1.296 ˣ 10⁷ / h²
= 12960 km h⁻²
= 12960 km h⁻² / ms⁻² ˣ 7.6ms⁻²
ms⁻² cecel on both sides
= 12960 km h⁻² ˣ 7.6
= 98496 km h⁻²