Asked by nona
A 200 g ball is lifted upward on a string. It goes from rest to a speed of 2.0 m/s in a distance of 1.0 m. What is the tension in the string?
Answers
Answered by
drwls
Presumable the string, with the ball on it, is being moved vertically upward. Assume is is being accelerated by a constant force F while moving upward a distance H, and increasing its velocity to V.
The work done by that force, T*H, must equal the increase in total energy, M g H + (1/2) M V^2.
T is the string tension. V is the final velocity.
T = M*g + M*V^2/(2H)
Compute T
The work done by that force, T*H, must equal the increase in total energy, M g H + (1/2) M V^2.
T is the string tension. V is the final velocity.
T = M*g + M*V^2/(2H)
Compute T
Answered by
nona
The answer is T = 1.96 + 0.4 = 2.39 N
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.