Q9A Physics teacher is teaching a class about the effect of friction. Theyassemble a track that has a vertical loop of radius 30.0 cm. A toy car ofmass 50.0 g is released from rest at a height of 1.00 m at the beginning ofthe track. The car rolls down the track and follows the loop before exitingthe track. The teacher asks the class to calculate the speed of the toy car ifthe coefficient of friction were 0.Im30 cmWhat is the calculated speed of the toy car as it reaches point X?(A) 1.49 ms(B) 2.21 ms!(C) 2.80 ms!(D) 7.84 ms

Given: m=0.05kg, r=0.3m, h=1m The potential energy of the toy car at the given initial height is :…

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