Projectile Motion

What is projectile motion?

• An object moving horizontally under constant velocity.

• An object moving vertically under the influence of gravity.

• An object moving along a curved path under the influence of gravity.

• An object moving in a straight line at a constant speed.

What is a key characteristic of horizontal and vertical motion in projectile movement?

• They are directly proportional to each other.

• They are completely independent of each other.

• Vertical motion influences horizontal distance, but not time.

• Horizontal motion influences vertical time, but not distance.

What primarily determines how long a projectile stays in the air?

• Only its horizontal velocity.

• Only its vertical motion.

• Both its horizontal and vertical motion equally.

• Its initial launch angle.

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A rock is thrown at an initial velocity of 8.5 m/s at an upward angle of 30 degrees off the horizontal. What is the initial vertical component of its velocity?

• 8.5 m/s

• 7.36 m/s

• 4.25 m/s

• 9.8 m/s