A heavy ball with a weight of 110 N is hung from the ceiling of a lecture hall on a 4.4-m-long rope. The ball is pulled to one side and released to swing as a pendulum, reaching a speed of 5.3 m/s as it passes through the lowest point. What is the tension in the rope at that point?
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Ответ:
The tension in the rope is T = 180.225N.
Explanation:
The forces acting on the ball is the tension
on the string and the force of gravity
. Their sum contributes to the centripetal force:
Solving for tension
we get:
Putting in numerical values
which is the tension in the rope.
Ответ:
a star
Explanation: