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# Projectile egg target lab

By Emma Cruz,2014-03-17 22:33
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Projectile egg target labLab,lab,LAB

Projectile egg target lab

Purpose:

1. Observe and understand motion of a projectile launched horizontally. 2. Apply kinematics equations to data to determine the time of flight, velocity with

which the ball left the table, and the acceleration on the ramp. 3. Use information from part 1, and understanding of physics to predict where the

ball will land when started from a new initial position.

Materials:

Piece of angle iron

Steel ball

Flat table

Meter stick

Carbon paper

Egg

Part 1

Procedure:

1. Set up your angle iron to form a ramp approximately 5cm from the end of the

table. Be sure to set it up in a way that can be exactly replicated tomorrow. 2. Mark a point exactly half way up your ramp. Place your ball on the point. 3. Allow the ball to roll down the ramp, onto the table, off the table and onto the

floor.

4. Estimate the landing spot. Tape a piece of computer paper to the floor so that the

center is approximately where the ball landed. Lay a piece of carbon paper on top

of the paper.

5. Set the ball on the half-way point and release 3 more times (Each time make sure

that a team member catches the ball immediately after it hits so that it does not

bounce and land on the carbon paper a second time.). The carbon paper should

mark the location. Measure the distance from a point on the floor directly below

the end of the table to the landing point of the ball. Record this distance as d= __ x

6. Measure and record the height of the table. Record this distance as d =_____ y

7. Give the ball to Mrs. Mann.

8. Draw a free body diagram of the ball just as it leaves the table.

9. What is the net force in the x direction?

10. What is the acceleration in the x direction?

11. What is the net force in the y direction?

12. What is the acceleration in the y direction?

13. Use the free body diagram, your understanding of physics, and the table below to

determine the time that the ball was in the air. Show all formula and substitutions

with units!

This page is about the ball leaving the table and traveling to the floor after rolling half

way down the ramp.

x y

V i

Vf

;v

v

a

; d

; t

14. Use the rest of the information in the table to determine the velocity with which

the ball left the table. Show all formula and substitutions with units!

This section is about the ball rolling along the table after traveling half way down the ramp.

15. Draw a free body diagram of the ball as it rolls along the horizontal table. (It

rolled for such a short distance that friction is negligible.)

16. Based upon your free body diagram, what is the net force on the ball as it rolls

horizontally along the table?

17. What is the acceleration of the ball as it rolls horizontally along the table?

18. With what speed did the ball leave the ramp?

This section is about the ball rolling half way down the ramp.

19. Draw a sketch of the ball on the ramp.

20. Indicate the direction of the net force (You do not need a free body diagram. You

do not need to identify all of the forces acting on the ball).

21. Is the ball a projectile as it travels down the ramp? Why or why not?

22. What is the initial velocity of the ball when it is first released from the point

halfway up the ramp?

23. What is the final velocity of the ball as it leaves the ramp?

24. What is the distance the ball travels on the ramp?

25. What is the acceleration of the ball on the ramp?

Part 2:

26. If the same ball is rolled from a higher location on the same exact ramp, then the

net force acting on the ball will be

a. More

b. Less

c. The same

27. If the same ball is rolled from a higher location on the same exact ramp, then the

acceleration of the ball will be

a. More

b. Less

c. The same

28. Determine the velocity with which the ball will leave the ramp if released from

the top of the ramp.

29. Determine where the ball will land if the ball is released from the top of the ramp,

allowed to roll freely along the table and project onto the floor. Show all formulas

and substitutions with units.

30. Mark the target location, and place an egg on the target.

32. You get one shot for an ice pop.

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