Physics
christiancontre
39

ball is dropped from rest at a height of 80m above ground. what is its speed just as it hits the ground.

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(1) Answers
karlien

Using SUVAT (S is displacement, U is initial Velocity, V is final velocity, A is acceleration, t is time); S = 80m U = 0ms^-1 V = ? A = 9.8ms^-2 T = XXX Use S U and A to find V; V^2=U^2+2AS V^2=0+2*80*9.8 V^2=1568 V=39.6ms^-1

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