Accepted Answer
The speed of ball at the lowest point is 7m/s.We are given that,The cable length is = L = 5.0mThe inclination angle with respect to the vertical = 30°Thus, the conservation of energy can be used to address the given issue. The wire from which the ball is suspended is slanted vertically. Consequently, the ball's height increase is,h = Lsinθh = 5.0m(sin 30°)h = 5/2m = 2.5mNow, at the lowest position, the ball's kinetic energy (KE) will be the highest, and at the highest point, the ball's potential energy will be the highest ( PE). then, in accordance with energy conservation.Potential energy at the greatest point equals kinetic energy at the lowest.K.E = P.E1/2mv² =mghv² = 2ghv² = 2 (9.8m/s²)(2.5m)v² = 49m/sv = 7m/sThus, the speed of ball at the lowest point would be 7m/s.To know more about speedhttps://brainly.com/question/3257219#SPJ4