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24 Dec 2018
9.8. A wheel is rotating about an axis that is in the 2-direction The angular velocity w, is-6.00 rad/s at t = 0, increases linearly with time, and is +4.00 rad/s at t = 7.00 s. We have taken coun- terclockwise rotation to be positive. (a) Is the angular acceleration during this time interval positive or negative? (b) During what time interval is the speed of the wheel increasing? Decreasing? (c) What is the angular displacement of the wheel att = 7.00 s?
9.8. A wheel is rotating about an axis that is in the 2-direction The angular velocity w, is-6.00 rad/s at t = 0, increases linearly with time, and is +4.00 rad/s at t = 7.00 s. We have taken coun- terclockwise rotation to be positive. (a) Is the angular acceleration during this time interval positive or negative? (b) During what time interval is the speed of the wheel increasing? Decreasing? (c) What is the angular displacement of the wheel att = 7.00 s?
Tod ThielLv2
26 Dec 2018
