Ball on string
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Exercise:
A ball on the of a string is revolved at a uniform rate in a vertical circle of radius pqcm. If its speed is pq. and its mass is pqg calculate the tension in the string when the ball is a at the top of its path and b at the bottom of its path.
Solution:
The force acting on the ball to keep him on a circle is F m fracv^r pq.kg fracpq.^pq.m pq.N. abcliste abc At the top of the circle gravitation provides pq.N of the pq.N necessary i.e. the tension in the string is pq.N. abc At the bottom of the circle the strings tension not only has to keep the ball on a circle but also has to hold its weight i.e. the force in the string is pq.N. abcliste
A ball on the of a string is revolved at a uniform rate in a vertical circle of radius pqcm. If its speed is pq. and its mass is pqg calculate the tension in the string when the ball is a at the top of its path and b at the bottom of its path.
Solution:
The force acting on the ball to keep him on a circle is F m fracv^r pq.kg fracpq.^pq.m pq.N. abcliste abc At the top of the circle gravitation provides pq.N of the pq.N necessary i.e. the tension in the string is pq.N. abc At the bottom of the circle the strings tension not only has to keep the ball on a circle but also has to hold its weight i.e. the force in the string is pq.N. abcliste