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I n s t r u c t i o n   M a n u a l

01 2 -1 4 7 8 1A

Plunger Cart

 ME-9430

800-772-8700

www.pasco.com

Features

Accessories

Please see the PASCO catalog or the PASCO web site at 

www.pasco.com

for information about accessories such as tracks, springs, 

bumpers, pulleys, masses, and special attachments that 

are designed to be used with the Plunger Cart.

Introduction

The Plunger Cart is a 500 gram cart with an aluminum body 

and ABS (acrylonitrile butadiene styrene) end caps. It has a 

spring plunger in one end and magnets in the other. It has 

“hook-and-loop” (Velcro®) tabs on the plunger end for 

inelastic collision studies. The magnets can be used for 

elastic collisions studies. The spring plunger has three set

-

ting positions and is released by a plunger trigger on the 

top of the plunger end of the Plunger Cart. Both ends of the 

Plunger Cart have convenient tie points at the top and the 

bottom. On the top of the Plunger Cart is an accessory tray 

3.

1.

9.

8.

2.

4.

5.

6.

7.

9.

10.

4.

1

Low-friction Retractable Ball-Bearing Wheels

6

Two Mounting Holes

2

ABS End Caps

7

Accessory Tray

3

Magnets in non-plunger end cap (not shown)

8

Plunger Trigger

4

Upper Tie Point (each end cap)

9

Hook and Loop (Velcro®) Tabs

5

Slot for Cart Picket Fence (ME-9804)

10

Lower Tie Point (each end cap)

Summary of Contents for ME-9430

Page 1: ...k and loop Velcro tabs on the plunger end for inelastic collision studies The magnets can be used for elastic collisions studies The spring plunger has three set ting positions and is released by a pl...

Page 2: ...Retention Bar and push the plunger a little farther into the Plunger Cart Slightly raise the end of the plunger and push the plunger until you hear or feel the second click Position 2 To release the p...

Page 3: ...ormation about the latest revision of this Instruction Manual visit www pasco com manuals and enter the Product Number For information about the Plunger Carts or any PASCO product what software to use...

Page 4: ...prings Pull the baseplate with one hand and cover the wheel axle area with the other hand This will help keep the wheel axle assembly from popping out 1 Using a Phillips screwdriver remove the screws...

Page 5: ...e velocity over this interval is given by the following equation Ifthe acceleration of the cartis constant as it rolls to a stop over the floor then the initial instantaneous velocity of the Plunger C...

Page 6: ...ger in and then push the plunger slightly upward to allow one of the notches on the plunger bar to catch on the edge of the small metal bar at the top of the hole Don t count the trials in which the t...

Page 7: ...he same course but in the opposite direction For example if the first few runs are toward the east then the next few runs will be toward the west See Figure 2 1 In the direction which is slightly down...

Page 8: ...3 Using Eqn 3 compute the accelerations corresponding to your data and an average acceleration for each of the two directions 4 Using the results of step 3 determine r and by algebraically solving for...

Page 9: ...erimentally determined and this value will be compared to the acceleration predicted by Newton s Second Law Theory The cart will be released from rest and allowed to accelerate over a distance d Using...

Page 10: ...oop and pull the cart back to a clearly marked starting point Determine the distance d that the Plunger Cart will move from the starting point to the bumper block and record this distance at the top o...

Page 11: ...781A 11 Table 3 1 Question 1 Can you think of any systematic errors that would effect your results Explain how each would skew your results Trial m g Average time s aexp cm s2 ath cm s2 Diff 1 10 2 20...

Page 12: ...Plunger Cart Experiments 12 012 14781A NOTES...

Page 13: ...ce k is known it is possible to predict the launch velocity vo by using conservation of energy since the elastic potential energy stored in the spring is converted into kinetic energy at the time of l...

Page 14: ...s the spring constant for your car Show your slope calculations on the graph and record k below 6 Determine the mass of the cart using a mass balance and record this value below 7 Using Eqn 3 and your...

Page 15: ...___________ m Predicted value of launch velocity v0 _______________ m s Average d ____________________m Average t ________________ s Observed value of the launch velocity v0 _________________ m s Perc...

Page 16: ...Plunger Cart Experiments 16 012 14781A NOTES...

Page 17: ...the percussionpoint We will call this zero impulse sweetspot SS2 For a given bat and pivot the position of SS2 can be found from where I is the rotational inertia of the bat for the corresponding pivo...

Page 18: ...location of SS2 and record it below Table 5 1 8 If time permits repeat the above after either repositioning the pivot i e choking up or adding 100 grams or so at some point on the stick NOTE This wou...

Page 19: ...5 100 PRINT TAB 5 r TAB 20 v TAB 39 w TAB 60 DeltaP NEXT PRINT PRINT INPUT Wouldyouliketoinputdifferentvalues a IF a N and a n GOTO Begin END REM Program SWEET SPOTS and PER CUSSION POINTS Fixed Pivo...

Page 20: ...Plunger Cart Experiments 20 012 14781A NOTES...

Page 21: ...icient of kinetic or sliding friction In this experiment you will use the principle of the conservation of energy to predict D given certain measurements you will make and the value of k determined in...

Page 22: ...urements four times UseEqn 3tocomputetheaccelerations of the block and enter the values in data Table 6 1 Determine the average value of accelera tion and enter it below data Table 6 1 4 Use Eqn 2 to...

Page 23: ...iction ______________ Predicted value of D ________________ cm Table 6 2 Average of measured value of D _________________ cm Percent difference ____________ Questions 1 In analyzing this system has th...

Page 24: ...Plunger Cart Experiments 24 012 14781A NOTES...

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