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Physics-

General

Easy

Question

A particle moves along the sides $A B comma B C comma C D$ of a square of side $25 blank m$ wuth a velocity of $15 blank m s to the power of negative 1 end exponent$ . Its average velocity is

$15 m s^{- 1}$
$10 m s^{- 1}$
$7.5 m s^{- 1}$
$5 m s^{- 1}$

The correct answer is: $5 m s to the power of negative 1 end exponent$

Average velocity = $blank fraction numerator T o t a l blank D i s p l a c e m e n t blank over denominator T i m e blank t a k e n blank end fraction equals fraction numerator 25 over denominator 75 divided by 15 end fraction equals 5 m divided by s$

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