A cheetah can maintain its maximum speed of 100 km/hr for 30.0 seconds.What minimum distance must a gazelle running 80.0 km/hr be ahead of the cheetah to escape?
A)100 m
B)167 m
C)70.0 m
D)83.0 m

Question

Quizplus · Accepted Answer

The cheetah can cover 100 km/hr * (30/3600) hr = 0.833 km or 833 m in 30 seconds. The gazelle can cover 80 km/hr * (30/3600) hr = 0.667 km or 667 m in the same time. The minimum distance the gazelle must be ahead is 833 m - 667 m = 166 m, which rounds to 167 m.

A Cheetah Can Maintain Its Maximum Speed of 100 Km/hr