Code Number: 1D60.20
Demo Title: Simultaneous Fall - 2nd Law Apparatus
Condition: Good
Principle: Gravitational Acceleration vs. Horizontal Velocity
Area of Study: Mechanics
Equipment:
2nd Law Apparatus, Meter Stick.
Procedure:
Set the apparatus up as shown on one of the small tables. Height should be 1 meter from the tabletop. The meter stick is used to trigger the apparatus. If done correctly, both balls will be heard to strike the table at the same time.
Make sure that the apparatus is level with the tabletop.
References:
- Daniel, "Experiential Learning Model in Two-Dimensional Kinematics", TPT, Vol. 57, #9, Dec. 2019, p. 648-649.
- Jennifer L. Burris, Brooke C. Hester, and Karl C. Mamola, "The Two-Bullet Problem with Constant Magnitude Drag Force", TPT, Vol. 56, #6, Sept. 2018, p. 340.
- Erlend H. Graf, "Projectile Motion Demonstration", TPT, Vol. 46, #9, Dec. 2008, p. 553.
- David Keeports, "Drag and the Two-Bullet Problem", TPT, Vol. 35, #3, Mar. 1997, p. 188.
- Daday van den Berg and Ed van den Berg, "A Launcher for Projectile Motion", TPT, Vol. 28, #7, Oct. 1990, p. 477.
- Earl Zwicker, "DOING Physics", TPT, Vol. 25, #1, Jan. 1987, p. 59.
- John Hoskins and Larry Lonney, "A Demonstration to Show the Independence of Horizontal and Vertical Motion", TPT, Vol. 21, #8, Nov. 1983, p. 525.
- Ralph Snyder, "Approximations for the Range of Ballistic Missiles", AJP, Vol. 55, #5, May 1987, p. 432.
- J. R. Prescott and F. Terentiuk, "Independence of Motion Apparatus", AJP, Vol. 31, #3, Mar. 1963, p. 215.
- M-158: "Ruler and Two Coins-Spring Gun", DICK and RAE Physics Demo Notebook.
- Freier and Anderson, "Mb-14", A Demonstration Handbook For Physics.
- George M. Hopkins, "Dropped and Projected Balls", Experimental Science, p. 43.
- Borislaw Bilash II and David Maiullo, "Drop the Dice", A Demo a Day: A Year of Physics Demonstrations, p. 40.
- Curt Suplee, "Gravity's Rainbow shapes", Everyday Science Explained, National Geographic, p. 80 - 81.