Physics, 30.03.2020 16:42 naomicervero
By calculating numerical quantities for a multiparticle system, one can get a concrete sense of the meaning of the relationships
p with arrowsys = Mtotv with arrowCM
and Ktot = Ktrans + Krel.
Consider an object consisting of two balls connected by a spring, whose stiffness is460 N/m. The object has been thrown through the air and is rotating and vibrating as it moves. At a particular instant the spring is stretched 0.37 m, and the two balls at the ends of the spring have the following masses and velocities:
• 1: 8 kg, ‹ 4, 11, 0 › m/s
• 2: 4 kg, ‹ −3, 10, 0 › m/s
(a) For this system, calculate p with arrowsys = kg · m/s
(b) Calculate v with arrowCM = m/s
(c) Calculate Ktot = J
(d) Calculate Ktrans = J
(e) Calculate Krel = J
Answers: 1
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