A simple pendulum consists of a small object of mass m= 0.150 kg suspended from a...

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Physics

A simple pendulum consists of a small object of mass m= 0.150 kgsuspended from a support stand by a light string. The string has alength L= 0.750 m. The string has an initial position given by Î¸=65.0Â° relative to the vertical. The pendulum is released from rest.Air resistance is negligible during the subsequent motion of thependulum.
a)Calculate the work done by gravity on the pendulum as it movesfrom its initial position to the lowest point of its semicirculararc. b)Calculate the speed of the object as it moves through thelowest point of its semicircular arc.
c)Calculate the tension in the string right as the object ismoving through the lowest point of its semicircular arc.
d)Repeat part b) using the conservation of total mechanicalenergy. (Is the total mechanical energy of the pendulumconserved?)

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3.7 Ratings (554 Votes)

a given mass of the pendulum M 0150 kg length of the stringL 0750 m 65 degreesW Work done is the change in potential energy MgH2MgH1 H1 L 1 cos H2 0 W See Answer

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