http://www.ck12.org Chapter 5. Motion in Two Dimensions
results of the demonstration may be surprising given that it seems that the projectile will miss the monkey because
the monkey will fall under the cannon ball.
http://www.youtube.com/watch?v=cxvsHNRXLjw
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/72710- What is the cannon ball in this video?
- What is used as the monkey in this video?
- Does the velocity of the cannon ball matter, or will it hit the monkey at any velocity?
Review
Questions
- A player kicks a football from ground level with a velocity of magnitude 27.0 m/s at an angle of 30.0° above
the horizontal.
(a) Find the time the ball is in the air.
(b) Find the maximum height of the ball.
(c) Find the horizontal distance the ball travels. - A person standing on top of a 30.0 m high building throws a ball with an initial velocity of 20. m/s at an angle
of 20.0° below horizontal. How far from the base of the building will the ball land? - An arrow is fired downward at an angle of 45 degrees from the top of a 200 m cliff with a velocity of 60.0 m/s.
(a) How long will it take the arrow to hit the ground?
(b) How far from the base of the cliff will the arrow land?
- trajectory: The ballistic trajectory of a projectile is the path that a thrown or launched projectile will take
under the action of gravity, neglecting all other forces, such as air resistance, without propulsion.