Chapter 08, Problem 014 rod with length &-1.2 m and negligible mass. The other e

Question

Chapter 08, Problem 014 rod with length &-1.2 m and negligible mass. The other end of the rod is pivoted so that the baill can move in a vertical circle. (a) What initial speed must be point on the right at which the ball is level with the initial polint? (d) If the bal's mass were doubled, what would the answer given the ball so that it reaches the vertically upward position with zero speed? What then is its speed at (b) the lowest to (a) be? (a) Number (b) Number (c) Number (d) Number Click if you would like to Show Work for this question: Open Show Work Units Units Units Units LINK TO 1EX LINK TO SAMPLE PROBLEN K TO SAHPLE PROLEM LINK TO SAHPLE PROBLEN VIDEO MIN LECTURE

Explanation / Answer

a) V = [2*g*L]

= (2*9.8*1.2)

= 4.85 m/s

b) v = [V² + 2*g*L]

= (4.852 + 2*9.8*1.2)

= 6.86 m/s

c) v = V = 4.85 m/s

d) Independent of mass, so it remains same.

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