Calculate the magnitude of the normal force

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Reference no: EM1359851

Q. A projectile is fired horizontally from a gun that is 37.0 m above flat ground, emerging from the gun with a speed of 230 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike the ground? (c) What is the magnitude of the vertical component of its velocity as it strikes the ground?

Q. A chair of weight 140N is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force = 38.0 N that is directed at an angle of 38.0 below the horizontal and the chair slides along the floor. Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair.

Reference no: EM1359851

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