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  3. 1. a pendulum with a length of 30 cm swings back a

1. A pendulum with a length of 30 cm swings back and forth as shown in...

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Physics

1. A pendulum with a length of 30 cm swings back and forth asshown in the figure above, at each turn around point it stops andit starts accelerating until reaching maxium velocity at the botton(equilibrium position), at which point it starts slowing down. Ifthe maximum angle is 11 degrees, what is its maximumvelocity in m/s? (Use g = 10.0 m/s2 and assumethere is no friction).

2. A car (mass 955 kg) is traveling with a speed of 48 mi/h. Abug (mass 5 mg) is traveling in the opposite direction.What speed would the bug need in (millions ofmi/h) in order to slow down the truck by 4 mile per hourin a big bug splash (i.e., final speed 44 mi/h)?

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