A horizontal bar 1.5 metres long and of small cross-section rotates ab – McqOptions

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1.	A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the linear velocity at the beginning of the interval ?
A.	188.6 m/s
B.	235.5 m/s
C.	300 m/s
D.	400 m/s
Answer» B. 235.5 m/s

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