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3 years ago

6

A distance-time graph indicates that an object travels 2 m in 2 s and then travels another 80 m during the next 40 s. What is th

e average speed of the object?

1 answer:

kumpel [21]3 years ago

3 0

The average speed of the object is given by the ratio between the total distance covered and the total time needed for the motion:
$v= \frac{S}{t}$

The total distance covered is:
$S=2m + 80 m = 82 m$
while the total time of the motion is
$t=2s+40 s=42 s$

Therefore, the average speed of the object is
$v= \frac{S}{t}= \frac{82 m}{42 m}=1.95 m/s$

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