Questions in Motion in A Plane

Select	Question
	When a body moves in a circular path, no work is done by the force since,
	Which of the following statements is false for a particle moving in a circle with a constant angular speed
	If \[{a_r}\] and \[{a_t}\]represent radial and tangential accelerations, the motion of a particle will be uniformly circular if
	A person with his hands in his pockets is skating on ice at the velocity of 10 m/s and describes a circle of radius 50 m. What is his inclination with vertical
	If the radius of curvature of the path of two particles of same masses are in the ratio 1 : 2, then in order to have constant centripetal force, their velocity, should be in the ratio of
	An object is moving in a circle of radius 100 m with a constant speed of 31.4 m/s. What is its average speed for one complete revolution
	A body of mass 1 kg tied to one end of string is revolved in a horizontal circle of radius 0.1 m with a speed of 3 revolution/sec, assuming the effect of gravity is negligible, then linear velocity, acceleration and tension in the string will be
	The acceleration of a train travelling with speed of 400 m/s as it goes round a curve of radius 160 m, is
	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
	A 500 kg crane takes a turn of radius 50 m with velocity of 36 km/hr. The centripetal force is