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You are on the Pirates of the Caribbean attraction in the Magic kingdom at Disney World. Your boat rules through a pirate battle, in which cannons on a ship and in a fort are firing at each other. While you are aware that the splashes in the water do not represent actual cannonballs, you begin to wonder about such battles in the days of the pirates. Suppose the fort and the ship are separated by 75.0 m. You sec that the cannons in the fort are aimed so that their cannonballs would be fired horizontally from a height of 7.00 m above the water. (a) You wonder at what speed they must be fired in order to hit the ship before falling in the water. (b) Then, you think about the sludge that must build up inside the barrel of a cannon. This sludge should slow down the cannonballs. A question occurs in your mind: if the cannonballs can be fired at only 50.0% of the speed found earlier, is it possible to fire them upward at some angle to the horizontal so that they would reach the ship?
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Chapter 4 Solutions
Physics for Scientists and Engineers with Modern Physics
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- In a basketball game, two teammates are going to pass a ball to each otherstarting together from center half court. Assuming that we are looking at abasketball court in bird’s eye view, player A is moving “north” towards one endof the court going 9 m/s. Player B, who is now moving 76◦away to the rightpasses the ball to player A with the ball going 14 m/s. What are the magnitudeand direction of the ball’s velocity going towards player A?arrow_forwardFind the horizontal and vertical components of the 100=m displacement of a superhero who files from the top of a tall building following the path shown in Figure P3.52.arrow_forwardVector A has x and y components of -7.8cm and 13cm respectively ( A_{x} = - 7.8cm . . A_{y} = 13cm ); vector vec B has x and y components of 15.2cm and -6.2cm respectively ( B_{x} = 15.2cm, B_{y} = -6.2cm). 1 f vec A - vec B +3 vec C = vec 0 , what are the components of vec C ?(C x =? , and C_{y} =?arrow_forward
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