A ball is released from rest at a height of 4m. At what speed does it hit the ground?
First write out information from the question.s=4m u=0m/s v=? a=9.8m/s2 t=Choose correct "suvat" equation: v2=u2+2asSubstitute in known variables.Obtain v= 8.9m/s
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Find the stationary points of y= 5x^2 + 2x + 7
Q4 on 2017 Edexcel C4 paper, concerns differentiation of multiple variables.
How do i know where a stationary point is and what type of stationary point it is?