With what velocity did the ball leave muzzle

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Q. A 2.20 kg frictionless block is attached to an ideal spring with forces constant 314N/m. At first the block has velocity -3.60 m/s and displacement 0.300-m.

Q. A cannon is fired horizontally from atop a 40m tower. The cannonball travels 145-m horizontally before it strikes the ground. With what velocity did the ball leave muzzle?

Reference no: EM1386823

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