A baseball is hit upward and travels along a parabolic arc (projectile motion) b
ID: 1658416 • Letter: A
Question
A baseball is hit upward and travels along a parabolic arc (projectile motion) before it strikes the ground. Which one of the following statements is TRUE? The y-component of the velocity of the ball is zero when the ball is at the highest point in the arc The x-component of the velocity of the ball is zero when the ball is at the highest point in the arc The acceleration of the ball decreases as the ball moves upward The acceleration of the ball is zero when the ball is at the highest point in the arc The velocity of the ball is a maximum when the ball is at the highest point in the arc
Explanation / Answer
The true statement is: (a) The y-component of velocity of the ball is zero when the ball is at the heighest point of the arc.
Reason: At the heighest point of the arc the ball will only have horizontal velocity.
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