2) For the experiment done in lab, recall that applying 3 ) A small object of ma

Question

2)For the experiment done in lab, recall that applying

3)A small object of mass

(a) What is the tension in the string?

(b) What is the magnitude of the acceleration of the mass as it moves in its circular path?

(c)What is the period of the motion, the time its takes the ball to complete one revolution?

The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f2 versus M/L, with f in rev/s, M in kg, and L in m. Your data falls close to a straight line that has slope 6.93 m/(kg · s2). Use g = 9.80 m/s2 and calculate the mass m of the ball. For the experiment done in lab, recall that applying ?Fx = max to the ball gives the equation Fstring = m4?2f2L. Combine this result with the result of applying ?Fy = may and derive an equation for sin ? in terms of f and L. ? is the angle between the string and the horizontal. For a given L, does the angle ? increase, decrease, or stay the same as f is increased? For L = 50.0 cm and f= 1.1 rev/s, what is the angle ?? (use g=9.8 m/s2.) A small object of mass m = 0.200 kg moves with constant speed in a horizontal circle on the end of a light string that has length l = 0.600 m, as shown in the sketch. The string makes a constant angle of ? = 45.1 degree with the vertical What is the tension in the string? What is the magnitude of the acceleration of the mass as it moves in its circular path? What is the period of the motion, the time its takes the ball to complete one revolution?

Explanation / Answer

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