Question Detail

PHY 101 PHY 101 Past Questions Objective Question
Take CBT

Question

A picture of weight 10.0 N is hung by two strings making angles of 60° and 30° with the horizontal. In the provided solution, a simplified method was used to find the tensions because:
Options
A The strings were of equal length.
B The weight was exactly 10.0 N.
C The angles added up to 90°, forming a right triangle.
Correct Answer
D The tensions were found to be equal.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The solution notes that 'since this turned out to be a right triangle, the simple trigonometric functions are sufficient.' The angles 30° and 60° sum to 90°, allowing the use of basic sine and cosine functions on the weight vector.

Hint

What is special about a triangle with angles of 30°, 60°, and 90°?

Question Info

Course: PHY 101
Topic: PHY 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 476 of 1250
Previous Course Details Next