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3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is...

3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 20 degrees below the horizontal in the -x direction, force 2 has a magnitude of 88 N and is applied in the +x direction , and force 3 has a magnitude of 25 N and is applied vertically downwards. When these forces are applied, the normal force acting on the mass is twice the amount of its weight. Also, when these forces are applied, the object moves 8 meters in the +x direction before it is launched horizontally off a cliff which is 28 meters above the ground. What is the speed, magnitude of velocity, in m/s, when it strikes the ground? Note: in midair, the only force acting on it is gravity.

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