\(\mathrm{a}=5\)

\(\mathrm{t}=4\)

\(V=u+a t\)

\(V=0+5 \times 4\)

\(V=20\)

\(\mathrm{V}_{\mathrm{x}}=20\, \mathrm{~m} / \mathrm{sec}\)

\(\mathrm{V}_{\mathrm{y}}=\mathrm{u}+\mathrm{ut}\)

\(=10 \times 2\)

\(\mathrm{~V}_{\mathrm{y}}=20\, \mathrm{~m} / \mathrm{sec}\)

\(\mathrm{V}=20 \sqrt{2}\)

and \(\mathrm{a}=10\, \mathrm{~m} / \mathrm{sec}^{2}\)