Question

a tortoise moves a distance of 72 km in 2 hours find speed in s.i unit m/s​

Answer 1

Answer:

Given:

Tortoise moves a distance (d) = 72 km

Time taken (t) = 2 hours

To Find:

Speed (v) in m/s

Solution:

We Know That,

$\red{\boxed{\sf v = \dfrac{d}{t} }}$

Given that,

d = 72 km

t = 2 hours

Substituting in the above formula

We get,

$\purple{\implies \sf v = \dfrac{72}{2} \;km/h}$

$\implies \sf v = 36 \;km/h$

We are asked to calculate in m/s

Therefore,

To convert km/h to m/s

$\blue{\sf Multiply\; the \;speed\; in\; km/h \;with\;\dfrac{5}{18}}$

Hence,

$\green{\implies \sf 36 \times \dfrac{5}{18} \;m/s}$

$\green{\purple{\implies \sf 10 \;m/s}}$

Therefore,

Speed is 10 m/s