Question

Procedure sx2g 10g 500g mi m2 500g Figure 2. I. Arrange your system as shown in Figure 2. Place your weights so that you have one 500g mass on each side, and a 10 gram mass on mi and five 2g masses on mz. Measure and record the total distance that mi will travel as it falls from its raised position to the floor. 2. Record the total mass of mi and m2. Be sure to include the mass of the hangers. 3. With mi fully raised, give mi a gentle push. If m and m are of equal mass, then mi should stop falling after a short distance due to the friction in the pulley. Add a lg mass to mi and again give it a gentle push from its raised position. Repeat this process until mi travels to the ground Typically, one or two grams will be sufficient. The amount of mass added to mi is the friction equivalent. Record this value as m without accelerating downward or stopping. and the total mass is: (mi + m2 + m) 61

Answers needed for the 2 questions in the second picture. First picture is the experiment and procedures.

In step six, we use an equation for an object that starts at rest. How would your results differ if m1 had a small intial velocity?

How could the experimental error be reduced?

Answer 1

At first, I would like to knock at the point that through you have given a picture of experimental procedure, but 6 is not included there. Probability it lies in some other page which you forgot to upload. Anyway, I will give answer as whichas I understand 2. If m_1 was a small initial velocity ,of 1cm/sec(say) l_i = 0.01 (= 0.01m/s) Then v = 0.01 + at. You need to measure v_i using a stopwatch & a scale (better it varnies). The distance travelled by that mass is s = 0.01t + 1/2 at^2 where, t = time elapsed after total journey. A = acceleration. V = Final velocity s = Total distance traversal 3. How could experimental errors be reduced. 1. It the experiment is done in a closed room, air flow will not disturb the measurement & the experiment would be hackle free. 2. Masses should be increased gradually , gently & without jerk. 3.