Question

4.Which of the following is not the unit of velocity ? A) m/s B) km/hr C) cm/s D) km

Answer 1

Answer

$\rm{\pink{Option\ D\ \checkmark}}$

km is not the unit of velocity

Given

A ) m/s

B ) km/h

C ) cm/s

D ) km

To Find

Which is not the unit of velocity

Explanation

Velocity is defined as displacement per unit time .

$\leadsto\ \rm{\green{Velocity=\dfrac{Displacement}{Time}}}$

Unit's of Displacement = cm , m , km .. etc

Unit's of Time = second , minute , hour ... etc

So , Unit's of Velocity = cm/s , m/s , km/s , km/h , .... etc

From this , given options A , B , C are matches but option D can't matches , as km is the unit of Displacement not the unit of velocity .

So , Option D ( km ) is not the unit of velocity

Answer 2

Answer:

answer is D

Explanation:

km is not the unit of velocity

Given

A ) m/s

B ) km/h

C ) cm/s

D ) km

To Find

Which is not the unit of velocity

Explanation

Velocity is defined as displacement per unit time .

Unit's of Displacement = cm , m , km .. etc

Unit's of Time = second , minute , hour ... etc

So , Unit's of Velocity = cm/s , m/s , km/s , km/h , .... etc

From this , given options A , B , C are matches but option D can't matches , as km is the unit of Displacement not the unit of velocity .

So , Option D ( km ) is not the unit of velocity