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A projectile of mass m is fired horizontally with an initial speed of vo from a height of h above a flat, desert surface. Neglecting air friction, at the instant before the projectile hits the ground, find the following in terms of m, vo, h, and g (a) The work done by the force of gravity on the projectile. W = (b) The change in kinetic energy of the projectile since it was fired. AKE = (c) The final kinetic energy of the projectile. KE = (d) Are any of the answers changed if the initial angle is changed? O Yes O No

A projectile of mass m is fired horizontally with an initial speed of vo from a height of h above a flat, desert surface. Neglecting air friction, at the instant before the projectile hits the ground, find the following in terms of m, vo, h, and g (a) The work done by the force of gravity on the projectile. W = (b) The change in kinetic energy of the projectile since it was fired. AKE = (c) The final kinetic energy of the projectile. KE = (d) Are any of the answers changed if the initial angle is changed? O Yes O No

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A projectile of mass m is fired horizontally with an initial speed of vo from a height of h above a flat, desert surface. Neglecting air friction, at the instant before the projectile hits the ground, find the following in terms of m, vo, h, and g (a) The work done by the force of gravity on the projectile. W = (b) The change in kinetic energy of the projectile since it was fired. AKE = (c) The final kinetic energy of the projectile. KE = (d) Are any of the answers changed if the initial angle is changed? O Yes O No Need Help? Read It
Transcribed Image Text:A projectile of mass m is fired horizontally with an initial speed of vo from a height of h above a flat, desert surface. Neglecting air friction, at the instant before the projectile hits the ground, find the following in terms of m, vo, h, and g (a) The work done by the force of gravity on the projectile. W = (b) The change in kinetic energy of the projectile since it was fired. AKE = (c) The final kinetic energy of the projectile. KE = (d) Are any of the answers changed if the initial angle is changed? O Yes O No Need Help? Read It
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