To make a pendulum, a 210 g ball is attached to one end of a string that has a length of 1.2 m and negligible mass. (The other end of the string is fixed.) The ball is pulled to one side until the string makes an angle of 24° with the vertical; then (with the string taut) the ball is released from rest. Find (a) the speed of the ball when the string makes an angle of 12° with the vertical and (b) the maximum speed of the ball. (c) What is the angle between the string and the vertical when the speed of the ball is one-third its maximum value?

a) , b) , c)

Explanation:

a) The speed of the ball is determined by applying the Principle of Energy Conservation:

The speed of the ball when the string makes an angle of 12° with the vertical is:

b) The maximum speed of the ball is:

c) The angle between the string and the vertical when the speed of the ball is one-third its maximum value is obtained by proving different values of . The solution is approximately:

answer; /// the above statement is (true);

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.