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1. The angular momentum of a rotating two-dimensional rigid body about its cente

ID: 1867515 • Letter: 1

Question

1. The angular momentum of a rotating two-dimensional rigid body about its center of mass G is A) m vG B) IG VG C) m w 2. Which parameter is not involved in the linear impulse and momentum equation? A) Velocity C) Time B) Displacement D) Force 3. As in the principle of work and energy, if a force does no work, it does not need to be shown on the impulse and momentum diagram/equation A) False C) Depends on the case. D) No clue! B) True If an impulse-momentum analysis is considered during the very short time of interaction, as shown in the picture, weight is a/an 4. A) impulsive force. B) explosive force. C) non-impulsive force. D) internal force. 4. Jet engines on the 100 Mg VTOL aircraft exert a constant vertical force of 981 kN as it hovers. Determine the net impulse on the aircraft over t 10 s A) 981 kN s B) 0 kN s C) 981 kN-s D) 9810 kN- F 981 KN

Explanation / Answer

1) D

2) B Displacement

3) C) non-impulsive force.

4) 0 kN·s

Since V1 = V2 = 0, there is no net impulse