I throw a ball into the air at some angle with respect to the horizontal.Neglecting the effect of friction,which of the following statements about the ball is true?
A)The acceleration is zero at the top of the motion.
B)The velocity is zero at the top of the motion.
C)The velocity is constant during the motion.
D)The vertical component of the velocity is constant during the motion.
E)The vertical component of the velocity is zero at the top.

Question

Quizplus · Accepted Answer

The vertical component of the velocity of a ball thrown into the air becomes zero at the top of its trajectory. This is because, at the highest point, the ball momentarily stops moving upwards before it starts to fall back down, indicating that its vertical velocity is zero at that instant. Gravity continuously acts on the ball, affecting its vertical motion but not its horizontal motion in the absence of air resistance.

I Throw a Ball into the Air at Some Angle