Question

if Jack rides a bicycle at 18 m/s then what distance will be cover I to 40 mins
a)36.68km
b)38.88km
c) 43.20km
d) 48.5km​

Answer 1

Step-by-step explanation:

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Answer 2

Given,

Jack rides a bicycle at 18 m/s

To Find,

What distance will be covered in 40 mins =?

Solution,

We can solve the question as follows:

It is given that Jack rides a bicycle at 18 m/s. We have to find the distance covered in 40 minutes.

Firstly, 40 minutes is not in the S.I. units hence unit conversion is required. We need to convert minutes into seconds.

$1\: minute = 60\: seconds$

$40\: minutes = 40*60 = 2400\: seconds$

Now,

The distance covered by a body at a given velocity and time is given as:

$Distance = Velocity*Time$

Here,

$Velocity = 18\: m/s$

$Time = 2400\: seconds$

$Distance = 18*2400$

               $= 43200\: m$

The distance covered is 43200 m. To convert it into kilometers, unit conversion is required.

$1\: metre = \frac{1}{1000}\: kilometre$

$43200\: m = \frac{43200}{1000} = 43.20\: km$

Hence, the distance covered is 43.20 km.