6.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{25c503ad-94c7-4137-83b5-c3e0aea62f0c-11_452_865_264_495}
\captionsetup{labelformat=empty}
\caption{Figure 3}
\end{figure}
A small ball \(P\) is projected with speed \(7 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) from a point \(A 10 \mathrm {~m}\) above horizontal ground. The angle of projection is \(55 ^ { \circ }\) above the horizontal. The ball moves freely under gravity and hits the ground at the point \(B\), as shown in Figure 3.
Find
- the speed of \(P\) as it hits the ground at \(B\),
- the direction of motion of \(P\) as it hits the ground at \(B\),
- the time taken for \(P\) to move from \(A\) to \(B\).