Two particles A and B, initially at rest, start moving towards each other under a mutual force of attraction. When the speed of A is “10 m/s” and the speed of B is “800 m/s”, what is the speed of their centre of mass? a) 0 b) 0.8v c) 80v d) 8v

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Q: ) What is the momentum of a 2000kg car moving at 80 km/h? a) 4.44´105kg·m/s b) 1.60´105kg·m/s c)…

A: 1. Given: Mass of the car=m=2000 kg The velocity of the car: v=80 km/hv=80×1000 m3600 sv=22.22 m/s

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A: given velocity of rocket before and after the collision with respect to a planet also final velocity…

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A: Answer: 9.29 m/s

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A: SOlution: given that m =0.15 kg v = 30.3 m/s t = 9.5x10-3 s

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Q: two cars, A and B, have a mass of 2 Mg and 1.5Mg, respectively. Determine the magnitudes of vA and…

A: Mass A = M  = 2Mg Mass of B = m = 1.5 Mg final speed = 50 km/hr  = 50 * 5/18  = 13.89 m/sTherefore,…