Question #6f4ee

1 Answer
Daniel H.
Nov 12, 2017

This is based on a kinematics equation that relates distance, time, and acceleration

Explanation:

Use kinematics equation #d=v_0t+1/2at^2# The a value is acceleration, which is #-9.8m/s^2#

So, #5=25m/st+1/2(-9.8m/s^2)t^2#

You could solve that as a quadratic equation using the quadratic formula

#-4.9t^2+25t-5=0#

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