Momentum Essay, Research Paper

Abstraction

Measurements of speed and mass of two objects clashing, back up the preservation of additive impulse. The kineticss of different multitudes distinguish speed values by experimentation. Video recordings of two clashing multitudes can be manipulated to pull out frames exposing distance poetries clip. Computer package enables us to deduce the speed. Different multitudes were tested to find an addition, lessening, or equal

consequence. From this information, we finally derive the impulse of each cart and prove the Law of Linear impulse. The undermentioned tests were measured:

1. An elastic hit with a cart traveling at changeless velocity with a cart of

equal mass originally at remainder ;

2. An elastic hit with a auto traveling at changeless velocity and a cart of

one-third the mass originally at remainder.

3. An elastic hit with a cart of three times the mass originally at

remainder ;

4. An inelastic hit with a cart traveling at changeless velocity and a cart

of two times the mass originally at remainder.

Procedure

Materials:

*quick Cam

*software

*two carts of equal mass

*two 500g weight blocks

*track

Stairss:

1. Set-up camera harmonizing to the right scenes noted in 3.4 ( pp. 19 )

2. Establish four points of mention seeable in the camera frame. Topographic point

the initial motionless cart at the 2nd mention point from the terminal

antonym of the oncoming cart. Record an elastic hit with a

cart traveling at changeless velocity with a cart of equal mass originally at remainder.

3. Salvage the picture ( mention to 3.4 pp.19 for instructions ) .

4. Open picture point to get down analysis of the gesture ( 3.4.1 pp. 19-20 ) .

5. Construct a distance vs. clip graph, and a speed vs. clip graph for

( A ) the cart in gesture before the hit ( B ) the cart

( s ) in gesture after

the hit. Three sets of the distance and speed graphs may

be required.

6. On the speed vs. clip graph, find the mean speed ; snap the & # 8220 ; F & # 8221 ;

button on the top right-hand side of the graph and select & # 8220 ; mean & # 8221 ; . Print

both graphs & # 8211 ; distance, speed.

7. Repeat this process from the measure figure two for the full four scenarios.

8. The mass of each cart is 500 gms. The mass of each block is 500 gms.

Consequences

In the first scenario, with both multitudes equal, impulse is virtually conserved with a P of 0.0035kgm/s. The 2nd scenario contains a cart three times the mass as the other. Our information concludes that P equals 0.0735 as the initial cart continues in the same way after hit. So far our measuring supports the jurisprudence of impulse preservation. The 3rd scenario involves the opposite mass constituents of the 2nd scenario ; the initial mass in gesture is one-third the mass of the inactive cart. The P is -0.1655kgm/s as the original traveling mass alterations way after hit. The hit in the 4th scenario is inelastic. The constituents stick together and have the same stoping speed although get downing multitudes were different ; the cart at remainder is one-half the mass of the cart traveling towards it. The ensuing P peers -.3013kgm/s. This indicates a big difference in the initial impulse verses the concluding impulse. In the picture, the two carts came to rest 20cm from hit.

The experimental consequences vary in truth harmonizing to the theoretical consequences. In an elastic hit, one expects the impulse to be conserved. However, we found our P off by a scope of 0.0035kgm/s to -0.1655kgm/s. We found this mistake partly due to the points that were graphed. Some exceeded the scope of gesture that was needed to cipher. The other border of mistake may be due to the little distance between the mention points. In the inelastic hit, energy is lost, possibly to thermal energy. This might explicate the big P.