Q. A pendulum consists of a 4.98kg mass on the end of a 0.873 m string. The mass is pulled aside so the string makes an initial angle with the vertical of 12.5o. The mass is then released with initial speed of 2.10m/s upward and perpendicular to the rope. Assume:

- There is no friction anywhere.

- The rope remains taut at all times.

a) When the mass reaches the bottom of its arc, find:

- speed of the mass: m/s

- magnitude of the tension in the string: N

b) Find the maximum angle between string and vertical?

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