Asked by Bob

A falling rock has a speed of 1.5 m/s. What is the velocity of the rock when it hits the ground 5 seconds later? Give the magnitude and direction
Answered by bobpursley
vf=vi+g*time I don't know if the initial velocity was up, or down. Assuming upwards.
vf=1.5-9.8*5
so it is going downwards at five seconds.
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