## Loop the Loop

A small block of mass

What is the kinetic energy of the mass at the point

What is the downward acceleration of the mass at the point

*m*= 1.2 kg slides, without friction, along the loop-the-loop track shown. The block starts from the point*P*a distance*h*= 58.0 m above the bottom of the loop of radius*R*= 17.0 m.What is the kinetic energy of the mass at the point

*A*on the loop?**282.5 J**What is the downward acceleration of the mass at the point

*A*of the loop?**27.70 m/s^2**

What is the minimum height*h*for which the block will reach point*A*on the loop without leaving the track?**42.5 m**