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
<u>Answer:</u> The correct option is
<u>Explanation:</u>
A catalyst is defined as the chemical species that increases the reaction rate but does not participate in it and is left behind after the completion.
A homogeneous catalyst is one that is present in the same phase as the reactants and products.
A heterogeneous catalyst is one that is present in different phase as that of reactants and products.
For the given chemical reaction:
As all the reactants and products are in gaseous state so, the homogeneous catalyst must also be in the gaseous state only.
Hence, the correct option is