9\(ms^{-1}\)
9.49\(ms^{-1}\)
13.42\(ms^{-1}\)
18.97\(ms^{-1}\)
Correct answer is D
Due to conservation of energy, K.E = P.E
\(\frac{1}{2}mv^{2} = mgh\)
\(\implies m \times 10 \times 18 = \frac{1}{2}mv^{2}\)
\(v^{2} = 2 \times 10 \times 18 = 360\)
\(v = \sqrt{360} = 18.97ms^{-1}\)
A fair die is tossed 60 times and the results are recorded in the table Number of die 1 2 ...
Find the coordinates of the centre of the circle \(4x^{2} + 4y^{2} - 5x + 3y - 2 = 0\)....
Given that \((\sqrt{3} - 5\sqrt{2})(\sqrt{3} + \sqrt{2}) = p + q\sqrt{6}\), find q....
Solve \(\log_{2}(12x - 10) = 1 + \log_{2}(4x + 3)\)...
If \(P = \begin{pmatrix} 1 & -2 \\ 3 & 4 \end{pmatrix}\) and \(Q = \begin{pmatrix} -2 & ...
A force of 30 N acts at an angle of 60° on a body of mass 6 kg initially at rest on a smooth hor...
If \(f(x) = 2x^{2} - 3x - 1\), find the value of x for which f(x) is minimum....