A dynamic blast blows a heavy rock straight up with an initial velocity of 49m/s. the function h(t) represent the height of the rock after t seconds.
A. How high does the rock go ?
B. When does the rock hit the ground again ?( Use factoring )
C. Will the rock reach a height of 120 m ? (explain using the discriminant)
D. When does the rock reach a height of 100 m ? (use the quadratic formula ) ( approximate
your answers to two decimal places )
E. Sketch the graph of the parabola include intercepts , vertex and and and at h=100m.