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Elementary Classical Physics (PHYS 1061) Cart And Hanging Mass Lab Report

Sandra Watson
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Lab 3 – This is lab report #3, Newton’s Second Law.

Temple University

Elementary Classical Physics I (PHYS 1061)

Introduction: The goal of this lab was to understand the Newton’s 2nd law and to understand
how force would be applied and how the mass of the system would affect/determine the
acceleration. Also, how using two different methods the acceleration can be obtained leading it
have to similar acceleration values.
Apparatus: For this lab, air track, two carts with the 10cm flags, pulley and a string was needed.
Also, two photogates, computer with the software Pasco interface and Capstone software. In
addition, Set of different masses were required.
Part 1: Setup.
● First step was to position the pulley at the end and hangs over the edge of the table refer
to the picture below to set up:
● Set up the photogate, as usual but this time 50 cm apart and align them so that a flag
therefore that the cart will be able to pass through the beam and record values.
● Measure the mass of cart(which came out to be 196g) and measure the mass of the hanger
(which came out to be 4.71g).
● Attach the pulley to the end of tack and hang the mass hanger and cart over pulley.
Part 2: Constant Force, Varying System Mass.
● Plug the photogate and set up the pre-configured timer that includes two
photogates and one flag and enter correct flag length.
● One person release the cart and other person catch it before it crash, and record
● Make a data in Excel with the data.
● Add 10g to the mass hanger provided the pulling force., Release cart and record
five data for five different cart, and have 40g on the cart at the end.
● Copy all data in excel to make graphs.
● Do calculations using method 1 and method 2 to get the acceleration and then use
that information to get gravitational acceleration.
Part III: Verifying both force and system mass
● Find the m2/m1+m2 by using data from part II
● use gravitational acceleration and m2/m1+m2 to graph the data for part III.
● Make sure the m1 and m2 is in kg not g
Precautions: To make this lab better, human errors could be prevented. Also, the friction
between the cart and the surface could be minimized. etc.



Elementary Classical Physics (PHYS 1061) Cart And Hanging Mass Lab Report

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