if a bird travels 150 cm for 10 sec then 100 cm for 10 sec and then 200 cm for 5 sec. What was the birds average speed?
To find the average speed of the bird, we need to calculate its total distance traveled and divide it by the total time taken.
First, let's calculate the total distance traveled by the bird.
For the first 10 seconds, the bird traveled 150 cm.
For the next 10 seconds, the bird traveled an additional 100 cm.
Finally, for the last 5 seconds, the bird traveled another 200 cm.
Therefore, the total distance traveled by the bird is 150 cm + 100 cm + 200 cm = 450 cm.
Next, let's calculate the total time taken by the bird.
The bird traveled for 10 seconds initially, then another 10 seconds, and finally 5 seconds. So, the total time taken by the bird is 10 sec + 10 sec + 5 sec = 25 sec.
Now, let's calculate the average speed of the bird by dividing the total distance traveled by the total time taken.
Average Speed = Total Distance / Total Time
Average Speed = 450 cm / 25 sec
Calculating this gives us:
Average Speed = 18 cm/sec
Therefore, the bird's average speed is 18 cm/sec.