Question

Suppose the bob of the previous problem has a speed of 1.4 m/s when the string makes an angle of 0.20 radian with the vertical. Find the tension at this instant. You can use cosθ  ≈ 1- θ² /2 and sinθ  = θ  for small θ .

Answer 1

Bob has a velocity 1.4m/sec, when the string makes an angle of 0.2 radian.