SOLUTION: suppose a toy rocket was launched from the ground straight up with initial velocity of 64ft/sec. How many seconds after launch was the rocket 48 feet above the ground
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Question 177484: suppose a toy rocket was launched from the ground straight up with initial velocity of 64ft/sec. How many seconds after launch was the rocket 48 feet above the ground Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website! The height function for this is where is the initial velocity and is the initial height. You are given that the initial velocity is ft/sec and the rocket was launched from the ground so .
So, and you want to solve for t when
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Giving you a quadratic in t that can be solved by ordinary means. Note that you are going to get two different answers. Does that make sense? (Hint: What goes up, must come down)
