Question

Sally was trying to calculate the speed of the hummingbirds feeding outside her window. Sally measured the distance from one feeder to the next, 24 meters. Then she sat and timed how long it took a hummingbird to fly from one feeder to the next. She timed 10 trials and calculated the average time, 3 seconds. What was the average speed of the hummingbird flying from one feeder to the other? A) 6 m/s B) 8 m/s C) 24 m/s D) 72 m/s

Answer 1

speed = distance ÷ time
i.e. 24 ÷ 3 = 8 m/s

Answer 2

Sally was trying to calculate the speed of the hummingbirds feeding outside her window. Sally measured the distance from one feeder to the next, 24 meters. Then she sat and timed how long it took a hummingbird to fly from one feeder to the next. She timed 10 trials and calculated the average time, 3 seconds.

Here, distance between one feeder to other = distance covered by hummingbird = 24m

time taken to cover one feeder to other = time taken to cover 24m distance = 3sec .

we know,
average speed = total distance/total time taken
= 24m/3sec = 8m/s

hence, option (B) is correct.