Question

A car moves a distance of 1000m with an average speed of 28m/s. calculate the time and please tell me the formula also​

Answer 1

distance = speed × time                 (formula)

where,

distance = 1000 m

speed = 28 m/s

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

$time = \frac{1000}{28}$$time = 35.71$ seconds

therefore, the time taken is 35.71 seconds

Answer 2

Provided that:

• Distance = 1000 m
• Average speed = 28 m/s

To calculate:

• Time taken

Solution:

• Time taken = 35.71 second

Using concept:

• Average speed formula

Using formula:

• Average speed is given by

• ${\small{\underline{\boxed{\sf{Average \: speed \: = \dfrac{Distance}{Time}}}}}}$

It can be also written as

• ${\small{\underline{\boxed{\sf{v \: = \dfrac{s}{t}}}}}}$

Knowledge required:

• SI of distance is metre
• SI of average speed is m/s
• SI of time is second

Required solution:

~ To solve this question we have to put the values and further solve according to the mentioned formula!

$:\implies \sf Average \: speed \: = \dfrac{Distance}{Time} \\ \\ :\implies \sf v \: = \dfrac{s}{t} \\ \\ :\implies \sf 28 = \dfrac{1000}{t} \\ \\ :\implies \sf t = \dfrac{1000}{28} \\ \\ :\implies \sf t = \cancel{\dfrac{1000}{28}} \\ \\ :\implies \sf t = 35.71 \: seconds \\ \\ :\implies \sf Time = 35.71 \: seconds \\ \\ {\pmb{\sf{Henceforth, \: solved!}}}$