Answer:
When an object moves perpendicular to a current, the velocity of the current does not affect the velocity of the object. Therefore, the velocity of Kate's kayak in the current is the same as her velocity in calm water, which is 2.0 mph.
The magnitude of velocity is a scalar and can be represented by the absolute value of velocity. In this case, the magnitude of Kate's velocity is |2.0| = 2.0 mph.
Explanation: