Express the acceleration of 10ms^-2 into km/hr²

1m = 1/1000 km &

1sec. = 1/3600 hr

so 10 m/s^-2 = 10 * 1/1000 * (3600)² km/hr²

129600 km/hr²

m/sec² = 1/1000km / 1/(3600)²hr

              =12960km/hr²

10m/sec=10*12960km/hr

                =129600km/hr

hope u got it