Equipment Needed: • “Ballistic Pendulum” oPhysics simulation • These instructions Purpose: The purpose of this lab will be to verify the equations conservation of momentum for inelastic collisions. Th

Equipment Needed:

• “Ballistic Pendulum” oPhysics simulation

• These instructions

Purpose:

The purpose of this lab will be to verify the equations conservation

of momentum for inelastic collisions.

Theory:

In Newtonian mechanics’ linear momentum is the product of the

mass and velocity of an object. It is a vector quantity, possessing a

magnitude and a direction. 

Procedure:

1. Launch the oPhysics Simulation “Ballistic Pendulum”

2. Set the Bullet Mass to be 0.10 kg

3. Set the pendulum mass to be 3.00 kg

4. Set the initial velocity of the bullet to 100 m/s

5. Set the height to be zero.

6. Hit “Fire”

7. The pendulum will now be swinging back and forth, use the height

slider to determine the change in height by adjusting it so that it

just touches the bottom of the pendulum at the top of its swing.

8. Record all the relevant data in Table 8.1

9. Redo for projectile velocities of 125 m/s, 150 m/s, 175 m/s, 200

m/s, and 225 m/s; entering your results into Table 8.1.

10. Redo with the pendulum mass set to 5kg, and the above velocities,

again entering your results in table 8.1

Procedure/Graphs

1. Transfer the height and mass data to Table 8.2.

2. Using equation (5), calculate the expected projectile velocities in

Table 8.2

3. Compute the percent error between the actual and calculated

velocities.

equation 5: Vp=(1+M/m)*square root of (2gh)

PHYS 2125

University Physics I Laboratory

Experiment #8: Ballistic Pendulum

Names: ____________________________________

____________________________________

Date: ____________________________________

write an ABSTRACT for the experiment. 

fill up the height(m) DATA

Table 8.1: Ballistic Pendulum

m=0.1kg M=3.00kg

Velocity (m/s)                                                                       Height (m)

100

125

150

175

200

225

m=0.1kg M=5.00kg

Velocity (m/s)                                                                       Height (m)

100

125

150

175

200

225

do the CALCULATIONS and fill up the height (m)  the calculated Vp (m/s)  and the %error.

Table 8.2: Actual vs Calculated projectile velocity

m=0.1kg M=3.00kg

Actual  Vp (m/s)                    Height (m)                         Calculated Vp (m/s)                        %Error

100

125

150

175

200

225

m=0.1kg M=5.00kg

Actual Vp (m/s)                    Height (m)                             Calculated Vp (m/s)                    %Error

100

125

150

175

200

225

write a CONCLUSIONS for the experiment.