A cannon with a muzzle speed of 1 000 m/s is used to start an avalanche on a mountain slope. The target is 2000 m from the cannon horizontally and 800 m above the cannon. At what angle, above the horizontal, should the cannon be fired?
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- A ball with a muzzle velocity of 1000 m / s to launch an avalanche on the slope of a mountainis used. The target is horizontally 2000 m and 800 m high from the ball. Horizontal the ballAt what angle should it be fired?An archer shoots an arrow horizontally at a target 15 m away. Thearrow is aimed directly at the center of the target, but it hits 52 cmlower. What was the initial speed of the arrow?A basketball player is standing on the floor 14.0 m away from the basket. The height of the basket is 3.05 m, and heshoots the ball at 49.0° with the horizontal from a height of 2.00 m. At what speed must the player shoot the ball so thatit goes through the hoop without striking the backboard?
- A projectile is launched on an elevated target with an initial velocity of Vo = 200 m/s in a direction making an angle of 300 from the horizontal.A catfish is spotted at the bottom of a creek. The depth of the water is 2 m. A hunter (with no knowledge ofoptics) fires a rifle shot, directly aimed at the catfish. The bullet strikes the water at an angle of 40° to the water. Assumethat the bullet is not deflected by the air/water interface, what is the distance from the bullet hole at the bottom of the creekto the catfish?A) 0.88 mB) 0.97 mC) 0.49 mD) 0.56 mE) 0.73 mA plane is travelling horizontally at 1500 km/h. A rocket is fired horizontally ahead from the plane at an angle of 6.0o from the direction of the plane and with a velocity of 2000 km/h. What is the resultant velocity of the rocket?
- A fixed mortar can fire a bomb with a velocity of 60 m/s and can be set between anangles 10 to 75 degree above the horizontal. What is the farthest possible distancethat the bomb can reach?You are really angry at your family, and in your frustration you decide you are going tothrow the pizza you bought for dinner onto the roof of your house. You are 6 metersfrom the house and the roof of the house is 3 meters above the ground. Assuming youtoss the pizza from ground level with an initial speed of 10 m/s at an angle of 60° (abovethe horizontal), how far onto the roof does the pizza land? Assume the roof is flat. Giveyour answer to 2 significant figuresIn 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?
- a pirate ship moored 560m from a fort defending the harbor entrance of an island . the harbor defense cannon , located at sea level , has muzzle velocity of 82m/s. to what angle must the cannon be elevated to hit the pirate ship?An ice hockey player is moving at 8.00 m/s when he hitsthe puck toward the goal. The speed of the puck relative tothe player is 29.0 m/s. The line between the center of the goaland the player makes a 90.0º angle relative to his path. What angle must the puck’s velocitymake relative to the player (in his frame of reference) to hitthe center of the goal?Aprojictile is fired at an angle of 30 from the horizontal with some initial speed.if the initial speed of the second projectile is twice that of the first projictile,firing at what other projectiles angle results in the same range.neglect air resistance.