Using the law of conservation of energy, determine the velocity and the normal reaction of the triangular crate when it is at the centre of the arc with a radius of curvature of 5 m, if the mass of the crate is 5 kg. The crate is sliding on the smooth curved ramp and it starts sliding the curved ramp with a velocity of 20 m/s (at A). 1) 18.8 m/s &
96 N 

Assuming B as the
centre of the arc and applying the conservation of energy principle we
have: So the velocity at B is V_{B}= 19.5 m/s Summing up all the
forces acting at point B we have : So the velocity of
the crate at B is V_{B}= 19.5 m/s and
