Question

How long will it take a runner to travel a distance of 1000 m at a speed of 12 m/s?​

Answer 1

Answer :

• 83.33 s

Given Information :

• $\rm { Distance = 1000 \; m}$

• $\rm { Speed = 12 \; m/s}$

To calculate :

• $\rm { Time = ?}$

Calculation :

As we know that,

$\longmapsto \rm { Speed = \dfrac{Distance}{Time} }$

$\longmapsto \rm { Speed \times Time = Distance }$

$\longmapsto \rm { Time = \dfrac{Distance}{Speed} }$

Substituting values,

$\longmapsto \rm { Time = \dfrac{1000}{12} s}$

$\longmapsto \rm { Time = \dfrac{500}{6} s}$

$\longmapsto \rm { Time = \dfrac{250}{3} s}$

$\longmapsto\boxed{ \rm { Time =83.33 \: s}}$

Therefore, 83.33 s will it take a runner to travel a distance of 1000 m at a speed of 12 m/s.

★ Some extra information :

★ Distance

• It is the length of the total path covered by the body.
• It is a scalar quantity.
• Its SI unit is metre (m).
• It is denoted by 's'.
• ★ Distance = Speed × Time

★ Speed

• Speed is a scalar quantity.
• Its SI unit is m/s.
• It is denoted by 'v'.
• ★ Speed = Distance/Time