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Explanations to the lab questions on laws of motion.

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I have attached my lab and data sheets. I need questions at the end of the lab (1, 2, 5, 6) answered and the free body diagram drawn with all symbols and which way the acceleration points. Please give any explanations.

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Solution Summary

Here is the lab data and the explanations of the work and the calculations of the experimental data are explained. The lab was to verify laws of motion.

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Answer 1:

No, t1 will not change if the glider is set free from the same initial position. The reason is that the acceleration of the system depends on the mass m and M and is constant while the distance it covers before reaching P1 is x1 which is constant and hence the velocity V1 at P1 will remain same whatever is the position of P2. Hence the transit time t1 will remains constant. If the acceleration is a (constant) and the glider is released from x = 0, then the velocity V1at P1 is given by the equation

[V2 = u2 + 2*a*s]

Or V12 = 0 + 2*a*x1


Which is independent of x2 and hence v1 and t1 remains unchanged. The data of the experiment are also in full agreement with the argument.

Now as the position of P2, x2 is changed the distance covered by the glider ...

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