d)
-1000=\frac{1}{2}a_{y}t^{2},where t>0
=(0.5)(-9.8)t^{2}
\frac{-2000}{-9.8}=t^{2}
\thereforet=100/7s
\therefore \Delta x =u_{x}t
=\frac{100}{7}(100)
=1428.571429...m
=1429m (4 sig figs)
h)
-1000=\frac{1}{2}a_{y}t^{2},where t>0
=(0.5)(-9.8)t^{2}
\frac{-2000}{-9.8}=t^{2}...