vector addition and force table (THESE ARE GENERIC QUESTIONS FOR ANY PHYSICS 1 F

Question

vector addition and force table (THESE ARE GENERIC QUESTIONS FOR ANY PHYSICS 1 FORCE TABLE )

1. Please write the possible sources of errors with explanation in a generic force table VECTORS experimet. using a force table, pulleys and weight.

2. Why were we allowed to use 10m/s2 instead of 9.8m/s2 as the value for g in the F=ma formula ? Is there another value we can used instead of 9.8m/s2 ?? (( does this have anything to do with the accuracy of the experiment- in terms of significant figures?))

2. List all the possible sources of error in the force table experiment. 3. In this experiment, you can use g = 10.0 m/s2 instead ofg = 9.80 m/s2 in the gravitational force magnitude calculation formula F = mg, why? Can y 9.80 m/s2? ou use any other value instead of g =

Explanation / Answer

1). The sources of error that would have affected the data would arise from

a). neglecting the friction on the pulleys.

b). neglecting the mass of the string.

2). This issue of approximation comes in as a means to avoid complexity while solving. Most of the times we use g = 10 , we arrive at an answer faster than if we use g = 9.81. the value 9.8m/s2 is an approximation that is only valid at or near the Earth's surface. You can go a few miles up or down and it'll still be good enough, but once you get any significant distance away from the surface of Earth, you would need to use a different value for gravitational acceleration. For example g becomes 9.7m/s2 at a height of about 35km. Using g=10 instead of 9.8 affects accuracy. You should always use the value 9.8 unless stated otherwise.

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