Questions in Motion in A Plane

Select	Question
	A tachometer is a device to measure
	Two bodies of mass 10 kg and 5 kg moving in concentric orbits of radii \[R\] and \[r\] such that their periods are the same. Then the ratio between their centripetal acceleration is
	The ratio of angular speeds of minute hand and hour hand of a watch is
	A car travels north with a uniform velocity. It goes over a piece of mud which sticks to the tyre. The particles of the mud, as it leaves the ground are thrown
	An aircraft executes a horizontal loop with a speed of 150 m/s with its, wings banked at an angle of \[{12^o}\]. The radius of the loop is \[(g = 10\,\,m/{s^2})\]
	A particle is moving in a horizontal circle with constant speed. It has constant
	A motor cyclist moving with a velocity of 72 km/hour on a flat road takes a turn on the road at a point where the radius of curvature of the road is 20 meters. The acceleration due to gravity is 10 m/sec2. In order to avoid skidding, he must not bend with respect to the vertical plane by an angle greater than
	A train is moving towards north. At one place it turns towards north-east, here we observe that
	The angular speed of a fly wheel making 120 revolutions/minute is
	A particle is moving on a circular path with constant speed, then its acceleration will be