A package is dropped from a helicopter that is descending steadily at a speed v0

Question

A package is dropped from a helicopter that is descending steadily at a speed v0. After t seconds have elapsed, consider the following. (a) What is the speed of the package in terms of v0, g, and t? (Use any variable or symbol stated above as necessary. Let down be positive.) 1 I ALREADY HAVE THIS ONE (b) What distance d is it from the helicopter in terms of g and t? I ALREADY HAVE THIS ONE . (c) What are the answers in parts (a) and (b) if the helicopter is rising steadily at the same speed? speed THIS IS THE ONLY ONE I NEED HELP WITH. I have tried v0+gt v0-gt -v0+gt -v0-gt -v0 v0*t . distance d = I ALREADY HAVE THIS ONE .

Explanation / Answer

initial speed of helicopter is vo the final speed is v the acceleration due to gravity is g = 9.8 m/s^2 the time is t we know that v(t) = vo + gt distance travelled by package is d = vo * t + (1/2)gt^2 when the helicopter is rising steadily at the same speed then v(t) = vo - gt distance travelled by package is d = vo * t - (1/2)gt^2

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