Solution
Turning points are the points where the total energy is equal to the potential energy only and kinetic energy is zero.
a The particle continued moving rightwards with no apparent limit.
When the object is at the top tension, normal force and weight act vertically downwards.
T + mg = mv^2 / R
T = m ( v^2 / R - g) = 0.2 ( 4.5^2/0.8 - 9.8)
= 3.1 N
24&25 please The figure below shows the potential energy function U (r)for a particle moving along...
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