Question

a cyclist goes around a circular track once every 2 min if the radius of the circular track is 105 meters. calculate it's speed​

Answer 1

Answer:

52.5 m/s

Explanation:

If you want explanation please tell me

Average Speed =(Distance ÷Time)m/s

=105 ÷2 =52.5m/s

In the there is no accurate data that the cyclist is moved in a circle or semicircle.I have given the answer of semicircle.

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Answer 2

Question :-

A cyclist goes around a circular path once every 2 minutes . If the radius of the circular path is 105 meters . Calculate the speed of the cyclist ?

Answer :-

Given :-

A cyclist goes around a circular path once every 2 minutes .

Radius of the circular path = 105 meters

Required to find :-

Speed of the cyclist ?

Time

Distance

Solution :-

Given information :-

A cyclist goes around a circular path once every 2 minutes .

Radius of the circular path = 105 meters

we need to find the speed of the cyclist .

In order to find the speed we need to know the distance & time .

So,

Let's find the distance and time

Here,

we need to apply a bit logic . The logic is that ;

The cyclist goes around a circular path . which means he goes around the boundary of the circular path .

which gives us a clue that ;

If we calculate the perimeter/circumference of the circular path then we can find the distance .

This is because,

Distance travelled by the cyclist = Perimeter of the cyclist

So,

Using the formula ;

Perimeter of the circle = 2 π r

=> 2 x 22/7 X 105

=> 2 x 22 x 15

=> 44 x 15

=> 660 meters

Hence,

Distance = 660 meters

Now let's find the time ;

Since it is mentioned that ,

A cyclist goes around a circular path once every 2 minutes .

so, it means that he takes 2 minutes to go around around the circular path

Hence,

Time = 2 minutes

Now,

let's convert this time from minutes to seconds .

Because, the distance in given in terms of meters .

So,

1 minute = 60 seconds

2 minutes = ?

=> 2 x 60

=> 120 seconds

Using the formula ;

$speed \: = \frac{distnce}{time}$

Speed = 660/120

Speed = 66/12

speed = 33/6

Speed = 5.5 m/s

Therefore,

Speed of the cyclist = 5.5 m/s