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If an object is protected upward with an initial velocity of 129 ft per sec, it's height h after t seconds is h=-16t^2+129t. Find the height of the...
If an object is protected upward with an initial velocity of 129 ft per sec, it's height h after t seconds is h=-16t^2+129t. Find the height of the object after 5 seconds.The height of the object after 5 seconds is ____ft