The speed of an arrow red from a compound bow is about 51, Ask an Expert

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The speed of an arrow ?red from a compound bow is about 51 m/s. An archer sits astride his horse and launches an arrow into the air, elevating the bow at an angle of 51 degrees above the horizontal and 1.1 m above the ground. The acceleration of gravity is 9.81 m/s^2.

a) What is the arrow's range? Assume: The ground is level. Ignore air resistance.

b) What is the height of the projectile?

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