An object is thrown upward at time $t=0 .$ After $t$ seconds, its height is $y=-4.9 t^{2}+7 t+1.5$ meters above the ground. (a) From what height was the object thrown? (b) What is the initial velocity of the object? (c) What is the acceleration due to gravity?
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9(0)^2 + 7(0) + 1.5 = 1.5$ meters. ** Show more…
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