Which of the following would be projectile motion?

a cannonball launched out of a cannon

How does the horizontal speed of a projectile change in the air?

It increases at a rate of 10 m/s per second.

It decreases at a rate of 10 m/s per second.

It increases at an increasing rate

A rock is launched horizontally at speed v off a cliff with a height of H. Suppose the height of the cliff is halved to H/2. How would the horizontal distance the rock travels change?

The horizontal distance would decrease

The horizontal distance would stay the same

The horizontal distance would increase

Cannot be determined without numerical values

Horizontal Motion

Horizontal Motion Requirements:

Skateboard
Soccerball
Friend or Volunteer

Horizontal Motion Procedure:

Ask your friend or volunteer to sit or stand on the skateboard while holding the ball.
Push the skateboard forward.
While rolling the board, let the volunteer toss the ball in the air.
Observe the ball trajectory.

Conclusion:

From your observation, you would have seen that the ball would have moved sideways and landed in your hands despite the person moving forward. The ball would be retaining its original horizontally motion in a manner as if neither the volunteer nor the ball has moved sideways primarily.

2D Motion and Projectile Motion

Projectile Motion Problems

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Horizontal Motion Requirements:

Horizontal Motion Procedure:

2D Motion and Projectile Motion

Projectile Motion Problems

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