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A 2060 kg truck traveling north at 42 km/h turns east andaccelerates to 50 km/h.
(a) What is thechange in the truck's kinetic energy?
(b) What is the magnitude of thechange in its momentum?
A simple pendulum has a mass of 0.550 kg and a length of 4.00 m. It is displaced through an angleof 55.0° and then released. What is the maximum angular acceleration
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A hotel elevator ascends 170 {rm m} with a maximum speed of 5.90 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.3 {rm m/s^2}.
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