Not actually a gun, it is a hand held radar unit that can measure the speed of moving objects, such as cars, baseballs, etc.
Any gun that one of them uses.
Any gun can.
An instrument commonly used to measure speed is a radar gun, which uses radio waves to calculate the speed of an object in motion. Radar guns are often used by law enforcement to monitor vehicle speed on roads.
A radar gun is commonly used by law enforcement to check a motorist's speed. This device uses radio waves to measure the speed of a moving vehicle by bouncing the waves off the vehicle and calculating the speed based on the frequency shift.
by a speed gun or speedo meter?
The speed gun was invented by former Major League Baseball player Bob Morgan in the late 1970s. He created it to measure the speed of baseball pitches accurately during games.
The standard military .50 BMG round uses a 750-grain bullet which exits the muzzle of the gun at around 2,700 fps.
Gun powder.
A radar gun police use to check for speeders.
The momentum of the bullet is equal and opposite to the momentum of the gun. Momentum = mv. Bullet =mbvb Gun = mgvg These are equal, with their speeds in opposite directions. mbvb = mgvg vg = vb x mb/mg = vb x (60/5000) = 0.012 vb The recoil speed of the gun is 0.012 the muzzle speed of the bullet. The question says vb is "500ms", which is unclear. If it is meant to indicate "500 meters per second", then the recoil speed is (500 x .012) = 6 m/s.
Yes, they are.
Radar gun.