Suppose the force of wind resistance is proportional to the speed of the object and in the direction opposite the object's velocity.If you throw an object upward,when is the magnitude of the acceleration the highest?
A)It is highest right after the object is released.
B)It is highest at the top of its trajectory.
C)The acceleration of the object is the same throughout the entire trajectory.

Question

Quizplus · Accepted Answer

When an object is thrown upward, the force of wind resistance is acting in the direction opposite to the object's velocity. At the moment it is released, the object has an initial velocity of zero, and so the force of wind resistance is also zero. As the object moves upward, its speed increases, and therefore the force of wind resistance also increases. Thus, the acceleration of the object is highest immediately after it's released.

Suppose the Force of Wind Resistance Is Proportional to the Speed