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acceleration of box, maximum angle of inclination

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1. A box of mass 5.0 kg is pulled vertically upwards by a force of 68 N applied to a rope attached to the box. Find a) the acceleration of the box and b) the vertical velocity of the box after 2 seconds.

2. A frictionless ramp 135 m long is to be built for a ski jump. If a skier starting from rest at the top is to have a speed no faster than 24 m/s at the bottom, what should be the maximum angle of inclination? Ignore friction.

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This solution assists in determining acceleration and maximum angle of inclination.

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