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Question Answer Tutorial - Physics->Circular Motion

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Question: A cyclist goes round a circular path of circumference 343 m in (√22)s. The angle made by him,
with the vertical is
Answer: 45°
Question: A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm
from the centre of the disc. The angular velocity of the gramophone disc is then doubled. Through
what distance, the coin should be shifted towards the centre, so that the coin will just slip?


Answer: 2 cm
Question: A car sometimes overturns while taking a turn. When it overturns, it is ----------.
Answer: The inner wheel which leaves the ground first
                        
Question: A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is
0.5, then maximum velocity with which the car can move is


Answer: 14 m/s
Question: A car of mass 1000 kg moves on a circular road with a speed of 20 m/s. Its direction changes by
90° after traveling 628 m on the road. The centripetal force acting on the car is


Answer: 1000 N
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