Homework Help: physics

Posted by emily on Sunday, November 4, 2012 at 9:41pm.

A golfer launches a golf ball off a tee that has been raised 24.8 meters off the ground. If the golfer strikes the ball with a velocity of 26.5 m/s at an angle of 45.8 degrees, how far will the ball carry in the air before hitting the ground below?

physics - drwls, Monday, November 5, 2012 at 5:04am
First solve for the time t that the golf ball is in the air.
24.8 + 26.5sin45.8*t - 4.9*t^2 = 0
Use the quadratic equation and take the positive root for t.
The horizontal X distance travelled is
X= 26.5*cos45.8*t

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