Question

A car travels 20 m in 1 second, next 50 m in 7 seconds and lastly 30 m in 2 seconds. Find the average speed of the car.

Answer 1

Answer:

10m/s

Explanation:

avg. speed= total distance/total time

                   = 20+50+30/1+7+2

                   =100/10 = 10m/s

Answer 2

Answer:

10 m/sec

Explanation:

Average speed = total distance/total time

20 m+50 m+30 m= 100 meter total distance

1 sec + 7 sec +2 sec = 10 second total time

Average speed = 100m/10sec.

= 10m/sec answer.

HOPE IT'S HELPS YOU.