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1. |
At an instant the link AB of length r has an angular velocity ω and an angular acceleration α. What is the total acceleration of AB? |
A. | [(ω2r)2 + αr)2]1/2 |
B. | [(ωr)2 + αr)2]1/2 |
C. | [(ω2r)2 + αr)]1/2 |
D. | [(ω2r)2 + αr)2]1/2 |
Answer» B. [(ωr)2 + αr)2]1/2 | |