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PHY 101 PHY 101 Past Questions Objective Question
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Question

Tarzan with mass 90 kg swings from a vine that is 3 m long. His speed at the bottom of the swing is 4.0 m/s. What will be the centripetal acceleration and the net force acting on him at the bottom of the swing?
Options
A 5.33 m/s² and 480 N
Correct Answer
B 8.33 m/s² and 440 N
C 53.3 m/s² and 408 N
D 5.63 m/s² and 804 N
Correct Answer

Option A is the correct answer.

Detailed Explanation

Centripetal acceleration a_c = v²/r = 4²/3 = 16/3 = 5.33 m/s². Net force = m a_c = 90 × 5.33 = 480 N.

Hint

a_c = v²/r, F_net = ma_c.

Question Info

Course: PHY 101
Topic: PHY 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 994 of 1250
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