<h2>
The change in KE is more for speed change from 20 to 30 km/h</h2>
Step-by-step explanation:
Let the mass of car be m.
Speed change from 10 to 20 km/h.
Initial speed = 10 km/hr
Initial KE = 0.5 x m x 10² = 50 m
Final speed = 20 km/hr
Final KE = 0.5 x m x 20² = 200 m
Change in KE = 200m - 50m = 150m
Speed change from 20 to 30 km/h.
Initial speed = 20 km/hr
Initial KE = 0.5 x m x 20² = 150 m
Final speed = 30 km/hr
Final KE = 0.5 x m x 30² = 450 m
Change in KE = 450m - 200m = 250m
The change in KE is more for speed change from 20 to 30 km/h
