[" A cube of mass "M" starts at rest from point "1" at a height "4R" ,where "R" is the radius of the circular track.The "],[" cube slides down the frictionless track and around the loop.The force which the track exerts on the cube at "]

A cube of mass M starts of rest from point 1 at a height 4R, where R is the radius of the circular track. The cube slides down the frictionless track and around the loop. The force which the track exerts on the cube at point 2 is :

An object of mass m is released from rest at a height h above the surface of a table. The object slides along the inside of the loop. The loop track consisting of a ramp and a circular loop of radius R shown in the figure. Assume that the track is frictionless. When the object is at the top of the circular track it pushes against the track with a force equal to three times its weight. What height was the object dropped from?

An object of mass m is released from rest at a height h above the surface of a table. The object slides along the inside of the loop. The loop track consisting of a ramp and a circular loop of radius R shown in the figure. Assume that the track is frictionless. When the object is at the top of the circular track it pushes against the track with a force equal to three times its weight. What height was the object dropped from?

An object of mass m is released from rest at a height h above the surface of a table. The object slides along the inside of the loop. The loop track consisting of a ramp and a circular loop of radius R shown in the figure. Assume that the track is frictionless. When the object is at the top of the circular track it pushes against the track with a force equal to three times its weight. What height was the object dropped from?

A particle of mass m is released from point A as shown in the gigure. Would it loop the loop if H=4r? What is the force on the circular track when it is at point (a) B, (b) C?

A particle of mass m is released from point A as shown in the gigure. Would it loop the loop if H=4r? What is the force on the circular track when it is at point (a) B, (b) C?

Figure shows a loop track whose lower part ends into a circular track of radius R and centre O. A small solid sphere of mass M rolls without slipping along the loop track from the end A at a height 6R from the bottom of the track. What is the horizontal force acting on the sphere, when it rises up to the point P in level with the centre O of the circular part ?