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A flat car is given an acceleration `a_(0)=2m//s^(2)` starting from rest. A cable is connected to a crate of weight `50kg` as shown whose other end is attached to a fixed support on ground. Neglect friction between the floor and the car wheels and also the mass of the pulley. Calculate corresponding tension in th cable if `mu=0.30` between the crate and the floor or the car. A. 350 NB. 250 NC. 300 ND. zero |
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Answer» Correct Answer - D `f_(r_("max"))=0.3(50g)=150N rArr a_("car")=2m//s^(2)` `"Required fricition force "=50(2)=100 N lt "fr"_("max")` so there will be no tension |
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