Question

2. An object moves 21m in the first 4 s, 22m in the next 4 s and 29m in the last 45. What is its average
speed?​

Answer 1

Answer:

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Answer 2

Case 1 :-

s = 21 m

t = 4 s

Case 2 :-

s = 22 m

t = 4 s

Case 3 :-

s = 29 m

t = 45 s

$speed = \frac{distance}{time}$

$speed = \frac{21 + 22 + 29}{4 + 4 + 45}$

$speed = \frac{72}{53}$

speed = 1.35 m/s

therefore, the average speed of the object is 1.35 m/s