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(10%) Problem 2: A chandelier is suspended by two identical, vertical chains sid

ID: 1595511 • Letter: #

Question

(10%) Problem 2: A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m 6.8 kg. G A 33% Part (a) If the tension in one chain is represented by T, write an expression for the magnitude of the tension in terms of m and g, the gravitational acceleration on the Earth's surface. Grade Summary Deductions Potential 100% 7 8 9 Submissions HOME Attempts remaining: 5 4 5 6 10% per attempt) 1 2 3 detailed view m. BACKSPACE CLEAR Submit Hint Feedback I give up! Hints o deduction per hint. Hints remaining 3 Feedback 0% deduction per feedback. A 33% Part (b) What is the tension in one chain, T, in newtons? A 33% Part (c) If the tops of the chains are separated so that the chains are no longer vertical, does the tension increase or decrease?

Explanation / Answer

2.solution

a.) T=(mg)/2
b.) (6.8kg)(9.81m/s^2)/2 = 33.35 N
c.) increase

3.solution

a) from kinematic equation x = ut + (1/2)at2

initial velocity u = 0

so a = 2x/t²

b) a = 2x/t² = 2*1.08 / 0.122 = 150 m/s²
c) Fnet = m*a = 15.5*10-3 kg *a = 2.325 N