please answer the question (4 parts) and please keep the explanation and calcula

Question

please answer the question (4 parts) and please keep the explanation and calculations neat so I could understand what is going on. all 4 of the questions are part of one question. thank you very much for it time and patience.

Exp 6-1P Experiment 6. Atwood Machine more accurately Objective: To study motion under gravity and to determine the value of g. the acceleration due to gravity by using an Atwood machine. Apparatus: An Atwood machine (Fig. 2), a timer, weights. Theory: Consider the two masses M1 and M2. attached to the ends of a light string passing over the light smooth pulleys as shown in Fig. 1. Mass M1 is greater than M2. When the masses are released, M1 will descend with an acceleration 'a' and M2 will ascend with the same acceleration 'a'. The tension T in the string is the same throughout its length. M1 19 To Timer Target Pad Fig. 2 By applying Newton's second law of motion to mass M1, Resultant of external forces acting on M1 (Mass M1)(acceleration of My) or T-M1 g=-M1 a Note that the acceleration of M1 is downward and hence the negative sign Similarly, for the motion of M1. T-M2 g M2 a

Explanation / Answer

According to the concept of the law of motion

(1) ans

Here the personal error is obtained between the second and third reading in any experiment the reading should containd pression

here first time the pression is not formed later taken reading contains the pression

(2) ans

the average time fall Tavg=(R1+R2+R3)/n

=(0.535+0.539+0.531)/3

=0.535 sec

(3) ans

now wefind the acceleration

s=1/2at^2

0.455=1/2*a*0.535^2

acceleration a=3.18 m/s^2

(4) ans

now we find the g value

a=(m1-m2/m1+m2)g

3.18=(0.2-0.1)g/(0.2+0.1)

g=9.54 m/s^2

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