Unlike velocity, speed is scalar, which means it is described by__only.
a. direction
b. magnitude
c. time
d. motion

- Magnitude only

Unlike velocity, speed is scalar, which means it is described by magnitude only.

The correct answer is magnitude.

Explanation: A scalar quantity is a quantity that has magnitude only. For example distance, speed etc.

A vector quantity is a quantity that has magnitude as well as direction. For example displacement, velocity etc.

Velocity is a vector quantity and speed is a scalar quantity.

Suppose, a car is moving with 3 meter per second. It represents the speed at which the car is moving.

But car is moving with 3 meter per second in south direction. It represents the velocity because 3 meter per second is magnitude and south is a direction.

Therefore, Unlike velocity, speed is scalar, which means it is described by magnitude only.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.

+15-35=-20

going in opposite directions