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Chapter 4: Q.3. (page 104)

Tarzan swings through the jungle by hanging from a vine.

a. Immediately after stepping off a branch to swing over to another tree, is Tarzan's accelerationa→zero or not zero? If not zero, which way does it point? Explain.

b. Answer the same question at the lowest point in Tarzan's swing.

Short Answer

Expert verified

a. It points along the trajectory of theT .

b. The net acceleration is along the vine that means at the lowest point of the trajectory, the acceleration points up.

Step by step solution

01

Step.1.

The net acceleration of particle in circular motion will never be zero and the net acceleration always in a direction in which the net force acts.

02

Part.(a)

The acceleration of T will never be zero even through the velocity at the extreme point is zero. The change in the direction of velocity gives the acceleration and it points along the trajectory of the T.

03

Part.b.

At the lowest point in T's swing, the acceleration is not zero. The net acceleration is along the net force acting on it. In swinging, the tension in the vine is greater than the weight of T. The net acceleration is along the vine that means at the lowest point of the trajectory, the acceleration points up.

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