The airplane shown is in level flight at an altitude of 0.50 km and a speed of 150 km/h. At what distance d should it release a heavy bomb to hit the target X? Take g = 10 m/s^{2}.
A stone is thrown horizontally from the top of a 20-m high hill. It strikes the ground at an angle of 45°. With what speed was it thrown?
Which of the curves on the graph below best represents the veticle component v_{y} versus t for a projectile fired at an angle of 45° above the horizontal?
A cannon fires a projectile as shown. The dashed line shows the trajectory in the absence of gravity; points MNOP correspond to one second intervals. Using g = 10 m/s^{2}, the lengths X,Y,Z are:
A girl wishes to row across a river to a point directly opposite as shown. She can row at 2 m/s in still water and the river is flowing at 1 m/s. At what angle with respect to the line joining the starting and finishing points should she point the bow (front) of her boat?