Question

a caterpillar crawled from the 0 cm mark to the 20 cm mark and back in 10 seconds. What would the caterpillar’s speed be? What would the caterpillar's velocity be?

Answer 1

Given:

a caterpillar crawled from the 0 cm mark to the 20 cm mark and back in 10 seconds.

To find:

• Speed and Velocity of caterpillar

Calculation:

Average speed of any object is defined as Total distance divided by the total time taken to cover that distance.

$avg. \: speed = \dfrac{total \: distance}{total \: time}$

$= > avg. \: speed = \dfrac{20 + 20}{10}$

$= > avg. \: speed = \dfrac{40}{10}$

$\boxed{ = > avg. \: speed = 4 \: cm {s}^{ - 1} }$

Average velocity is defined as the total displacement divided by the total time taken to cover the displacement.

$avg. \:velocity = \dfrac{total \: displacement}{total \: time}$

In this case , total displacement will be zero because the starting and stopping point of the object is same.

$= > avg. \:velocity = \dfrac{0}{10}$

$\boxed{ = > avg. \:velocity = 0 \: cm {s}^{ - 1} }$

HOPE IT HELPS.