1. Denote the initial speed of a cannon ball fired fromabattleship as V o . When

Question

1. Denote the initial speed of a cannon ball fired fromabattleship as Vo . When the initail projectile angle is45o with respect to the horizontal, it gives a maximumrange, R. a. The time of flight tmax of thecannon ball for this maximum range ,R is by ? b. The maximum hieght hmax ofthe cannon ball is given by? c. The speed Vhmax of the cannon ball of itsmaximum height is given by? 1. Denote the initial speed of a cannon ball fired fromabattleship as Vo . When the initail projectile angle is45o with respect to the horizontal, it gives a maximumrange, R. a. The time of flight tmax of thecannon ball for this maximum range ,R is by ? b. The maximum hieght hmax ofthe cannon ball is given by? c. The speed Vhmax of the cannon ball of itsmaximum height is given by?

Explanation / Answer

(a). Time of flight T = 2 v o sin 45o / g                               = 0.1443 v o (b). Maximum height = v o2 sin2 45 o / 2g                                 = 0.02551 v o2 (c). The speed Vhmax of the cannon ball ofits maximum height is = v o cos 45o                                                                                                    = 0.707 v o                                                                                                    = 0.707 v o

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