The 5-kg block is moving around the circular path centered at O on the smooth horizontal p...

The 5-kg block is moving around the circular path centered at O on the smooth horizontal plane when it is subjected to the force F = (10t) N, where t is in seconds. If the block starts from rest, determine its speed when t = 4 s. Neglect the size of the block. The force maintains the same constant angle tangent to the path.