devinm2924 devinm2924

15-02-2018
Physics

contestada

A 1.41 kg mass is suspended from a string which is pulled upward. the mass accelerates upwards with an acceleration of 3.10 m/s2. what is the tension in the string?

Respuesta :

egenriether egenriether

15-02-2018

If the tension T is pointing upward (positive) and the weight, mg, is downward (negative) then

T - mg = ma

or

T=m(a+g)

Then

T = 1.41(3.1+9.8) = 18.189N

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