In a Museum Exhibit of a Simple Pendulum,a Very Small

question 117

Multiple Choice

In a museum exhibit of a simple pendulum,a very small but dense 6.0-kg ball swings from a very light 2.5-m wire.The ball is released from rest when the pendulum wire makes a 65° angle with the vertical,and it swings in a circular arc with no appreciable friction or air resistance.What is the force that the wire exerts on the ball just as the ball swings through its lowest position?

• A)11 N
• B)59 N
• C)68 N
• D)130 N
• E)0 N

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