Which of the following is a measure of velocity?
2 answers:
Answer : The correct option is 30 meters/second, South.
Explanation :
Velocity : It is defined as the rate of change of position with respect of the time.
Velocity is a physical vector quantity, magnitude and direction are necessary to define it.
The formula of velocity is,
v = velocity
= change in position
= change in time
The unit of position is meter and the unit of time is second.
The SI unit of velocity is meter/second with direction.
Therefore, the correct option is 30 meters/second, South.
You might be interested in
Answer:
Activation Energy
Explanation:
The main cause of slowness to start a reaction is the value of it activation energy. When metals possess low activation energy, it takes them time to start a reaction. But once started, the reaction becomes vigorous.
Activation Energy: the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
