Barber\'s Problem #1: A 2kg ball swings from rest on a 0.8m long string which is

Question

Barber's Problem #1: A 2kg ball swings from rest on a 0.8m long string which is initially held horizontally. Find a value for the tension in the string when the ball reaches the lowest point Barber's Problem #2: Two balls of putty with equal mass are tied to a post O with strings of equal length L. One ball is allowed to hang vertically at rest while the other is pulled back and released when the string is horizontal. The two balls collide and stick together. Find the highest point H that they reach after the collision. Due 2/21 at the beginning of class 2nd Midterm Exam 2/23 Page 1 1Q+ MacBook Air 5 7 8 9

Explanation / Answer

Ans 1: At the lowest point acceleration of the ball due to movement is totally horizontal. So it does not have any effect on String tension. So string tension will be weight of the ball.

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