To go the maximum distance the shell must be fired at an angle of 45 degrees, which means its initial horizontal and vertical velocities are equal; call it v_1. From y=y_0 +v_1 t - (1/2)gt^2 you can set up an equation for the time the shell is aloft. Then use that expression for time in the equation for horizontal motion: x = x_0+v_1 t = 41Km and solve for v_1. Don;t forget that the initial velocity is the vector sum of the initial vertical and horizontal velocity components.
<span>Once you have the answer to (a), (b) should be straight forward.</span>
Answer:
tropical cyclones in the southern hemisphere move clockwise
and in the northern hemisphere they move anticlockwise
Following a unified approach, an objective criterion has been developed for the determination of yearwise onset and withdrawal dates of the summer monsoon over the 19 subregions across India. In total 14 meteorological parameters are considered in the development of the objective criteria, two of which represent heating over south Asia-Middle East sector and Tibet-Himalaya-Karakoram-Hindukush Highlands (THIKHIHILS), two intensity of the general atmospheric circulation (GAC) over eastern hemisphere, three intensity of regional circulations and seven local hydro-meteorological conditions.
