Question 10

The process of the question 9 is repeated. This time, however, the string is cut when the ball is in the middle of its swing.

Which path would the ball take as it falls to the floor?

Average: = 62%

Please explain the arguments behind your choice.

Answer:

Horizontal velocity is not affected by gravity. Superposition

Average: = 35%

Comment:

The number of correct marks is quite good but obviously based on wrong arguments. I only know the answers of my students and there I found that most of them again argued that there is a force driving in horizontal direction. They strongly believe in a relation between force and velocity.