Understanding Projectile Motion

What is the horizontal component of velocity when a ball is kicked at an angle θ with speed u?

• u / cos θ

• u * sin θ

• u / sin θ

• u * cos θ

How does gravity affect the vertical motion of a projectile?

• It slows down the upward motion and accelerates the downward motion.

• It only affects horizontal motion.

• It has no effect on vertical motion.

• It increases the upward speed.

What is the formula for the time of flight of a projectile?

• u * cos θ / g

• 2 * u * sin θ / g

• u * sin θ / g

• 2 * u * cos θ / g

Which angle of launch provides the maximum range for a projectile?

• 45°

• 90°

• 60°

• 30°

What is the relationship between the horizontal range and the angle of launch?

• Range is maximum at 45°.

• Range decreases as the angle increases.

• Range is maximum at 90°.

• Range is independent of the angle.