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A prehistoic bug (m=0.02kg) has escaped into the moder world. It ignorantly hovers (at rest)in the middle of a road. Moments later is has a head-on collision with a VW jetta (m=1465kg) driving at 97 m/s south on the same road. How due to the bug's superior prehistoric exoskeleton, the collision is 99.99999% elastic.
a) how fast (and in what direction) is the ubg traveling after the collision?
b) Where does the other 0.0001% of the kinetic energy go?
A 2150 kg truck is traveling east through an intersection at 1.5 m/s when it is hit simultaneously from the side and the rear. What are their speed and direction just after the collision
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A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the equal, and they have the same mass.
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