Question

1. A smooth sphere (mass 10 kg) rolls on a smooth
curved surface from the point A with a speed of
10 m/s. The sphere reaches the point D passing
through point B. Find : (a) the total energy of the sphere at the point A (b) the kinetic energy and the
potential energy at the point B, C) the kinetic energy
at C, (d) the kinetic energy at D, (e) will the sphere
go beyond D? (g= 10 m/s).
​

Answer 1

Explanation:

A= the total mechanical energy of the sphere at point A is zero.

B=the the total mechanical energy of the square at B is 2500J.

C=the kinetic energy at point B is 2500J.

D=the potential energy at B is 0J.