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November 24, 2014

Homework Help: PreCal

Posted by sammy on Wednesday, January 18, 2012 at 11:39pm.

Projectile Motion: An object is propelled upward at an angle theta, 45 degree < theta <90 degree, to the horizontal with an initial velocity of v0 feet per second from the base of an inclined plane that makes an angle of 45 degree with the horizontal. If air is ignored, the distance R that it travels up the inclined plane is given by:

R= v0square square root of 2/32 [Sin(20)-cos(20)-1]

A. Find the distance R that the object travels along the inclined plane if the initial velocity is 32 feet per second and theta=60 degree

B. Graph R=R(theta) if the initial velocity is 32 feet per second.

C. What value of theta makes R largest?

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