A small boat is moving at a velocity of 3.35 m/s when it is accelerated by a river current perpendicular to the initial direction of motion. If the acceleration of the current is 0.750 m/s², what will be the new velocity of the boat after 33.5 s? A) 25.3 m/s at 82.4° from initial direction of motion B) 25.3 m/s at 7.59° from initial direction of motion C) 640.1 m/s at 82.4° from initial direction of motion D) 640.1 m/s at 7.59° from initial direction of motion

Question

Quizplus · Accepted Answer

The correct answer is A because the new velocity of the boat is 25.3 m/s at 82.4° from the initial direction of motion. This is because the acceleration of the current is perpendicular to the initial direction of motion, so it will only change the direction of the boat's velocity, not its speed. The speed of the boat will remain 3.35 m/s, but the direction of its velocity will change by 82.4°.

A Small Boat Is Moving at a Velocity of 3