Question

A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:

(a) What is its average speed?

(b) How far does it travel in 1 second ?

(c) How far does it travel in 6 seconds ?

(d) How long does it take to travel 240 m ?

Answer 1

Given data

Distance traveled = 150 m

Time = 5 sec

(a)

We know,

$Averagespeed=\frac{Distancetraveled}{Timetaken}=\frac{150}{5}=30$ m/s

Hence the average speed =30 m/s

(b)

Distance traveled in 1 second = $\frac{150}{5}=30m$

Hence the distance traveled in 1 second is 30 m

(c)

Distance traveled in 6 seconds = $30\times 6=180m$

Hence the distance traveled in 6 sec = 180 m

(d)

Time taken to travel 240 m

We know,

$Time=\frac{Distance}{Speed}=\frac{240}{30}=8$ sec

Hence car covers 240 m in 8 sec.