A rope of mass 4kg&length 10 is pulled by a force50N.find tension produced in the rope at a distance 3mfrom the point where force is acting
Asked by Lipimaharana0258
29th July 2018,
12:22 PM
Answered by Expert
Answer:
It is assumed the length of rope is 10 m. Fig.(a) illustrates the question as given.
When the rope is pulled up by a force of 50N, we get an upward acceleration a = 50/4 = 12.5 m/s2
if we need to find tension at 3 m from point of application of force, then remaining mass of 7 m rope acting as load.
Fig.(b) shows the force diagram needed to get tension at 3 m from point of application of force.
As per Newton's law we have, (T - 2.8×g) = 2.8×a = 2.8×12.5 ; hence we get T = 62.44 N
Answered by Expert
29th July 2018,
3:16 PM
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