An antitank gun is located on the edge of a plateau that is 60 m above...

An antitank gun is located on the edge of a plateau that is 60 m above the surrounding plain. The gun crew sights an enemy tank stationary on the plain at a horizontal distance of 2.2 km from the gun. At the same moment, the tank crew sees the gun and starts to move directly away from it with an acceleration of 0.90 m/s². If the antitank gun fires a shell with a muzzle speed of 240 m/s at an elevation of 10deg. above the horizontal, how long should the gun crew wait before firing if they are to hit the tank.

ll

Expert Solution

genius_generous answered 2 years ago

A gun is placed on a cliff of height 60 m above ground level, and fires...

A gun is placed on a cliff of height 60 m above ground level, and fires a projectile at an angle of 50 degrees. The muzzle velocity of the projectile is 139 m/s. What will be the magnitude of the total velocity when it hits the level ground (y=0m). Round your answer to the nearest tenth of m/s.

A portable radio is sitting at the edge of a balcony 5.1 m above the ground....

A portable radio is sitting at the edge of a balcony 5.1 m above the ground. The unit is emitting sound uniformly in all directions. By accident, it falls from rest off the balcony and continues to play on the way down. A gardener is working in a flower bed directly below the falling unit. From the instant the unit begins to fall, how much time is required for the sound intensity level heard by the gardener to increase by...

A gun is used to shoot a target located at a distance of 100.0m. The gun...

A gun is used to shoot a target located at a distance of 100.0m. The gun is pointed horizontally at a height of 1.3 m above the ground. At the impact with the target, 78% of the kinetic energy of the bullet is absorbed by the target, and all vertical velocity is lost. The bullet rebounds hitting the shooter in the knee (between 50.0 and 50.2 cm above the ground). Calculate the initial velocity of the bullet with a 0.1...

Two stones are dropped from the edge of a 60-m cliff, the second stone 2.0 s...

Two stones are dropped from the edge of a 60-m cliff, the second stone 2.0 s after the first. How far below the top of the cliff is the second stone when the separation between the two stones is 40 m?

A 55-kg diver stands at the end of a diving board located 10 m above the...

A 55-kg diver stands at the end of a diving board located 10 m above the water level. The diving board is held down at one end by an anchor bolt. The fulcrum is located at 1.4 m from the bolt and the total length of the board is 3.9 m. Draw a free body diagram showing the forces acting on the diver. Calculate the torque that she exerts on the board with respect to the fulcrum. Neglect the mass of the...

A rock is tossed with an initial speed of 20 m/s, 60° above the horizontal. Ignoring...

A rock is tossed with an initial speed of 20 m/s, 60° above the horizontal. Ignoring air resistance, what is its speed 3s after it was thrown? A. 18.9m/s B. 14.6m/s C. 15.7m/s D. 11.2m/s E. 4.3m/s

NEED ASAP A cannonball is fired at 85 m/s at 60° above the horizontal. For what...

NEED ASAP A cannonball is fired at 85 m/s at 60° above the horizontal. For what period of time is the cannonball at height of 200 m or greater?

A naval gun aboard a ship is mounted so as to fire at 30◦above the horizontal.Shells...

A naval gun aboard a ship is mounted so as to fire at 30◦above the horizontal.Shells fired from this gun have a muzzle velocity of 0.35km/s. The ship makesa direct approach toward a bunker on a high clifftop 150m above sea-level.It is known that the approaches to the shore have been heavily mined andthat no ship can come closer than 5km.At what horizontal range from the bunker should the ship open fire so asto strike the bunker? (Neglect air resistance,...

A projectile is shot from the edge of a cliff 115 mm above ground level with...

A projectile is shot from the edge of a cliff 115 mm above ground level with an initial speed of v0v0 = 65 m/sm/s at an angle of 35.0∘∘ with the horizontal, as shown in the figure (Figure 1). Figure 1 of 1 Part A Determine the time taken by the projectile to hit point PP at ground level. Express your answer to three significant figures and include the appropriate units. tt = nothingnothing SubmitRequest Answer Part B Determine the...

A 60.0 kg skier is moving at 6.15 m/s on a frictionless, horizontal snow-covered plateau when...

A 60.0 kg skier is moving at 6.15 m/s on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.95 m long. The coefficient of kinetic friction between this patch and her skis is 0.330. After crossing the rough patch and returning to friction-free snow, she skis down an icy, frictionless hill 2.95 m high. How fast is the skier moving when she gets to the bottom of the hill? How much internal energy was generated in crossing...

Question