Question

an object travels with a speed of 20ms-¹ for 20s and 40ms-¹ for next 40s find average speed of the object​

Answer 1

Explanation:

V1=20m/s

V2=40m/s

t1=20s

t1=40s

Vav= Total distance /Total time

20+40/20+40

60/60

1m/s

So, the average speed of the object is 1m/s

Answer 2

Answer:1m/s

Explanation:average velocity means total distance divided by total time taken. So here we are given with two quantities of speed and time both. So it goes like this:

20+40( speed of the object)/20+40(time of the object)

60/60=1m/s.

Hope it helps!