Which of the quantities-speed, velocity, acceleration-have same SI unit?

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Solution

Step1: speed
$s p e e d = \frac{d i s \tan c e}{t i m e}$
Its unit is $\frac{m}{s}$
Step2: velocity
$v e l o c i t y = \frac{d i s p l a c e m e n t}{t i m e}$
Its unit is $\frac{m}{s}$
Step3: Acceleration
$A c c e l e r a t i o n = \frac{c h a n g e i n v e l o c i t y}{t i m e}$
Its unit is $\frac{m}{s^{2}}$

Hence, speed and velocity have the same SI unit.

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