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31 Jan 2018
At the instant of the figure, a 1.7 kg particle P has a positionvector r of magnitude 1.1 m and angle ?1 = 45° and a velocityvector v of magnitude 4.5 m/s and angle ?2 = 30°. Force F ofmagnitude 1.5 N and angle ?3 = 30° acts on P. All three vectors liein the xy plane.
(a) What is the angular momentum of the particle about theorigin?
kg·m2/s
(b) What is the torque acting on the particle about theorigin?
N·m
At the instant of the figure, a 1.7 kg particle P has a positionvector r of magnitude 1.1 m and angle ?1 = 45° and a velocityvector v of magnitude 4.5 m/s and angle ?2 = 30°. Force F ofmagnitude 1.5 N and angle ?3 = 30° acts on P. All three vectors liein the xy plane.
(a) What is the angular momentum of the particle about theorigin?
kg·m2/s
(b) What is the torque acting on the particle about theorigin?
N·m
Reid WolffLv2
1 Feb 2018
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