Help Needed Solving Physics Problem for Civil Engineering Student

AI Thread Summary
A civil engineering student seeks help with a physics problem involving a 0.5 kg ball on a 2 m string, released from a 30-degree angle to the vertical. The key questions are about calculating the speed of the ball at the lowest point of its motion and the tension in the string at that point. To solve this, principles of conservation of energy, Newton's second law, and centripetal acceleration are necessary. The discussion emphasizes the importance of these physics concepts in finding the required answers. Understanding these fundamentals is crucial for solving similar problems in civil engineering.
KingJason
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hi I am a student of civil engineering and have never done physics,this question was on my exam paper and am wondering if anyone can help me solve it.

A 0.5 kg ball is tied to a string 2 m long and the other end of the string is tied to a rigid support. The ball is held at an angle of 300 to the vertical, with the string pulled taut, and is then released.

(ii)What is the speed of the ball at the lowest point of its motion?

(iii) What is the tension in the string at this point?

thanks in advance
 
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Welcome to PF!

Hi KingJason ! Welcome to PF! :smile:
KingJason said:
A 0.5 kg ball is tied to a string 2 m long and the other end of the string is tied to a rigid support. The ball is held at an angle of 300 to the vertical, with the string pulled taut, and is then released.

(ii)What is the speed of the ball at the lowest point of its motion?

(iii) What is the tension in the string at this point?

(you mean 30º?)

You'll need conservation of energy, Newton's second law and centripetal acceleration :wink:
 

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