A ball is thrown vertically up from the ground. If the positive direction is upward, then h = -16t² + 48t feet gives the height of the ball after t seconds. When will the ball reach the ground? (a). 1.5 sec (b). 2 sec (c). 2.5 sec (d). 3 sec

A ball is thrown vertically up from the ground. If the positive direction is upward, then h = -16t² + 48t feet gives the height of the ball after t seconds. When will the ball reach the ground? (a). 1.5 sec (b). 2 sec (c). 2.5 sec (d). 3 sec

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter10: Quadratic Equations

Section10.4: Solve Applications Modeled By Quadratic Equations

Problem 10.84TI: A man throws a ball into the air with a velocity of 96 ft/sec. Use the formula h=16t2+v0t to...

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Question

A ball is thrown vertically up from the ground. If the positive direction
is upward, then
h = -16t² + 48t
feet gives the height of the ball after t seconds. When will the ball reach
the ground?
(a). 1.5 sec
(b). 2 sec
(c). 2.5 sec
(d). 3 sec

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