An object travels at a velocity of -54 m/s for 11 seconds. What is its speed?

Question

Quizplus · Accepted Answer

Velocity is a vector quantity meaning that it contains information about both the direction and the magnitude of the quantity. 54 is the magnitude and the negative sign gives direction. Speed is a scalar quantity, meaning that it only gives you information about the magnitude of the quantity. Speed is the magnitude of velocity. Example: A scalar quantity is 10 steps. A vector quantity is 10 steps to the right. To find the scalar quantity from a vector quantity, you remove the information about direction. For one dimensional quantities, this means taking the absolute value, removing the negative sign if there is one. |-54 m/s| = 54 m/s Note that m/s² is the unit for acceleration, not speed.

An Object Travels at a Velocity of -54 M/s for 11