Question

2. A car travels a distance of 420 km in
2 hours 20 minutes. What is the speed of the
car in m/sec?​

Answer 1

Answer:

50 m/s

Step-by-step explanation:

Total time = 2 hr 20 min

2+1/3 hr

7/3

speed = distance / time

420 /(7/3)

180 km/hr

speed in m/s = 180 × 1000 / 3600

180 × 5/18

50 m/s (ans).

Thank u.

Answer 2

Answer:

420 km=420000m

2hour 20 min =140 min=140×60sec=8400sec

speed of the car is420000/8400==m/sec

50m/sec