Geometry of the derivative (1 Viewer)

Audioscars

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Hey guys, i'm kinda stuck on this one question involving primitive functions with regards to projectile motion. the question is as follows :

a stone is thrown upwards according to the equation dv/dt= -10, where V is the velocity in meters per second and t is the time in seconds. given that the stone is thrown from the top of a building 30 meters high with an initial velocity of 5m/s, find how long it takes for the stone to hit the ground.

help will be greatly appreciated!
 

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