A wrecking ball of mass M is suspended by a thin cable (of negligible mass). The ball's position is recorded by a flash camera three times at intervals of 95 ms. For each of the sequences illustrated below, the tension remains constant. Indicate whether the tension in the cable, T, is Greater than, Less than, or Equal to the weight of the ball, Mg, or whether one Cannot tell.

Question

anonymous · Answer

attachment

anonymous · Answer

I guessed:
Less than
Equal
Less than
Greater than
Equal to
Cant tell
Greater than
equal
cant tell

vincent-lyon.fr · Answer

All your answer are correct! Gr8.

The 2 remaining ones are looking like their paths are parabolas, aren't they?
How is the acceleration directed with such trajectories?

anonymous · Answer

I guess the one with a downward facing parabola would mean that the wrecking ball has greater acceleration

anonymous · Answer

Yay i got it right- according to my online program.  Thank you!

vincent-lyon.fr · Answer

:)