A golfer practicing on a range with an elevated tee $4\mathrm{.}9$ m above the fairway is able to strike a ball so that it leaves the club with a horizontal velocity of $20$ m s$1.($Assume the acceleration due to gravity is $9\mathrm{.}81$ m s$2,$ and the effects of air resistance may be ignored unless otherwise stated.$)$

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All$$answer must be given to $2.$ decimal places

a$.$ How long after the ball leaves the club will it land on the fairway?$$ s

b $$What$$horizontal distance will the ball travel before striking the fairway?$$m $$

c $$What$$is the acceleration of the ball $0\mathrm{.}5$ s after being hit?$$m$/$s$2$

d $$Calculate$$the speed of the ball $0\mathrm{.}80$ s after it leaves the club.$$ m$/$s

e $$With$$what speed will the ball strike the ground?$$m$/$s