Question: When an object is dropped on a certain earthlike planet, the distance it falls in tseconds, assuming that air resistance is negligible, is given by

When an object is dropped on a certain earthlike planet, the distance it falls in tseconds, assuming that air resistance is negligible, is given by 5m : Mt2 where s(t) is in feet. Suppose that a medic's reex hammer is dropped from a hovering helicopter. Find (a) how far the hammer falls in 4 sec, (b) how fast the hammer is traveling 4 sec after being dropped, and (c) the hammer's acceleration after it has been falling for 4 sec. (3) The hammer falls D feet in 4 seconds. (Simplify your answer.) (b) The hammer is traveling |:| fti'sec 4 seconds after being dropped. (Simplify your answer.) (c) The hammer's acceleration is ftlsecfsec after it has been falling for 4 sec. (Simplify your answer.)

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