• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Investigating Force, Mass and Acceleration using a Trolley

Extracts from this document...

Introduction

Investigating Force, Mass and Acceleration using a Trolley Aim of experiment: Using simple trolley experiments, take suitable measurements from them to find the Mass of the trolley, the fraction force acting in the system and to investigate any other effects found when using apparatus. Let M = the mass of the trolley (A), MA = Mass added onto the trolley MB = the mass of the hanging mass (B) t = Tension in the string g = Gravitational force = 9.8 N R = the resistive force acting in the system. i.e. Fraction between the track and the trolley, fraction force in the pulley and air resistance. The Diagram above shows the setup of apparatus for the particular experiments. The acceleration meter measures the acceleration of the system by measuring the time taken through each of the 4cm cardboard and the time interval (t) between the two cardboards. The speed (u, v) through each of them is calculated and the acceleration is calculated using the formulae. a = (v - u)/ t Two sets of experiments are carried out: First experiment: 0.09 kg of mass (MA) is placed on the trolley and the hanging mass (MB) is 0.01 kg at the start. The acceleration of the system is measured. ...read more.

Middle

N on the system. Using the equation obtained before: a = (MBg - R) / (M + MA + MB) Let k = factor of M 1 ? k ? 5 a = (MBg - R) / (kM + MB) a = (0.06g - R) / (kM + 0.06) The Table below shows the results obtained form this experiment. k Mass/(kM)kg Acceleration1 / ms-2 Acceleration2 / ms-2 Acceleration3 / ms-2 Average Accel / ms-2 1 1M 1.22 1.22 1.20 1.21 2 2M 0.61 0.61 0.61 0.61 3 3M 0.41 0.40 0.41 0.41 4 4M 0.30 0.29 0.30 0.30 5 5M 0.22 0.23 0.21 0.22 The Graph show that a is approximately equals to 1.24 k-1. The Acceleration is inversely proportional to k and as k doubles, the acceleration halves. In order to prove that a = (0.06g - R) / (kM + 0.06) supports the graph and the data from the second experiment. A graph with inverse acceleration (1/a) against k is plotted. Graph showing 1/a against k By making a into 1/a in the equation. The equation of the graph could be formed. a = (0.06g - R) / (kM + 0.06) 1/a = (kM + 0.06) / (0.06g - R) 1/a = kM/ (0.06g - R) ...read more.

Conclusion

1.53 0.03 1.74 1.72 1.7 1.72 0.04 1.97 1.94 1.93 1.95 0.04 A same graph for the first experiment is plotted but with error bars. The maximum and minimum of the mass of trolley and the resistive force is calculated. The line represent the maximum regression F = 0.4933A+ 0.0439 M + 0.1 = 0.493 R = 0.0439 N M = 0.393 kg The line represent the minimum regression F = 0.4739A + 0.0425 M + 0.1 = 0.474 R = 0.0425 N M = 0.374 kg 0.393 - 0.383 = 0.01 0.0439 - 0.0434 = 0.001 0.374 - 0.383 = -0.01 (2d.p.) 0.0425 - 0.0434 = -0.001 (3d.p.) Therefore the mass of the trolley is approximately 0.38 +/- 0.01 Resistive force is approximately 0.043 N +/- 0.001 The final result I obtain is only an approximate value due to the fact that there is uncertain errors caused by the light gate, the inclination of the track and the variation of the mass used. In the second experiment the resistive force of the system is proved to be inconstant as the mass of the trolley increase and this could cause errors on the results I obtained from the first experiment because the mass of the trolley is not constant and I assumed the resistive force to be constant in the calculation. ?? ?? ?? ?? JUSTIN WONG 4/23/2007 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related AS and A Level Mechanics & Radioactivity essays

1.  ## Aim:To find out whether or not the angle of the ramp affects the acceleration ...

3 star(s)

Label this as d1. 3. Now measure the last 11 dot section with the measuring tape and note down the measurement. Label this as d2. 4. Now that we have d1 and d2; we can move on and find out v1 and v2.

2. ## Physics coursework: Trolley experiment

a car, but the observations only back up this theory to a certain extent. If the ramp were raised higher then the results would have been faster as there would be less friction acting on the cart.

1. ## Centripetal motion. The objective of this experiment is to verify whether the tension ...

It can be amended that time is recorded for every 10 oscillations. This can reduce the chances for the one who swirled the rubber bung to have the angular speed of the rubber bung altered during the time-taking period.

2. ## Physic lab report - study the simple harmonic motion (SHM) of a simple pendulum ...

-1.88E-01 2.04E-02 -4.28E-01 -2.75E+00 <BR />7.50E+01 4.93E+00 -2.06E-01 2.04E-02 -2.75E-01 2.29E+00 <BR />7.60E+01 5.00E+00 -2.16E-01 2.04E-02 -1.53E-01 1.83E+00 <BR />7.70E+01 5.07E+00 -2.38E-01 2.65E-02 -3.36E-01 -2.75E+00 <BR />7.80E+01 5.13E+00 -2.49E-01 2.85E-02 -1.53E-01 2.75E+00 <BR />7.90E+01 5.20E+00 -2.55E-01 2.85E-02 -9.17E-02 9.17E-01 <BR />8.00E+01 5.27E+00 -2.59E-01 2.85E-02 -6.11E-02 4.59E-01 <BR />8.10E+01 5.33E+00 -2.57E-01

1. ## Multi-bladed Pumps. Does the number of propellor blades affect the efficiency of a ...

back toward the propeller by gravity before another blade exerts more propulsion force on the water. At the moment it is not clear to me why the relationship is not linear, but I suspect that the propeller must first totally overcome the force exerted by gravity on the water (weight)

2. ## Centripetal Force

Therefore, the bung would whirl into a nearly horizontal circular path to enhance the accuracy of the experiment. Part B - Measurement of centripetal force Procedure: 1. One end of the nylon string is attached to a rubber bung. The free end of the string is passed through a glass tube and then attached to some weights.

1. ## In this report I will start by exploring the history of the Computerised Tomography ...

Also, in this period of economic recession the CT has shown to be cost-effective imaging tool for a wide range of clinical problems. Comparing CT to its competitors the MRI scan, CT is less sensitive to patient movement and can be performed even if the patient has an implanted medical device, unlike MRI.

2. ## OCR B Advancing Physics Physics Practical Investigation Coursework Investigating Simple Harmonic Oscillations

Exactly the same relationships are true as in the undamped system, the values are just lower. The damping effect of water is due to the removal of energy from the system and is caused by friction between the mass and damping fluid. • Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to 