Please help me with mechanics motion due to gravity
A helicopter is hovering 490m above ground. A package is dropped from the heli, and 2 seconds later a 2nd package is dropped from same position.
Find expressions for differences in height, distinguishing the cases 0-2, 2-10, 10-12 and >12 seconds.
Sketch a graph to show the differences in height and find its greatest height, and find its greatest value
answer given: 4.9 t^2, 19.6(t-1)m, ( 490-4.9(t-2)^2)m, 0; 176.4m
thank you so very much
Re: Please help me with mechanics motion due to gravity
You are given that each package is in free fall. So what is the equation to use to find the height of an object?
Originally Posted by mysur