A particle is moving from point A to point B and covers the entire distance of $10 k m$ in just $2 m i n u t e s$ . What would be the speed at which the particle was traveling?

$5 m / s$

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83.3 m / s

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83.3 k m / s

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20 k m / s

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Solution

The correct option is B $83.3 m / s$
The formula to find speed when distance and time are given is,
Speed (m/s) = $\frac{D i s t a n c e (m)}{T i m e t a k e n (s)}$
To get the speed in metres per second, we have to first convert distance in metres and given time into seconds.
As we know, $1 k m = 1000 m e t r e s$ and $1 m i n u t e = 60 s e c o n d s$
$S p e e d = \frac{10000}{120}$ = $\frac{1000}{12}$ = $83.3 m / s$

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A particle is moving from point A to point B and covers the entire distance of 10km in just 2minutes . What would be the speed at which the particle was traveling?

A particle is moving from point A to point B and covers the entire distance of $10 k m$ in just $2 m i n u t e s$ . What would be the speed at which the particle was traveling?