Question

Physical science : Find the speed of an object that covers 400 km in 5 hr.

a. 40 km/hr
b. 80 km/hr
c. 2000 km/hr
d. 800 km/hr

Answer 1

B. 80 km/hr

Explanation:

Answer 2

speed=distance / time.

Data:
distance=400 Km
time=5 hours.

Speed=400 Km / 5 hours=80 km/hr.


Answer: b. 80 Km/hr.