According to Pyramid Air Gun Mall, muzzle velocity is calculated by multiplying the grain of the bullet or pellet being fired from the gun by the feet per second the bullet travels after being fired. Divide this number by 450,240 to calculate muzzle velocity. The final number is a constant derived by two times the acceleration of gravity by 7,000, which is the number of grains in a pound.Know More
To give an example of this formula, a 115 grain bullet travelling at 1300 feet per second has a muzzle velocity of 431 foot-pounds. Foot-pounds are the units used for measuring energy in the United States customary and imperial systems of measurement. If you would rather calculate muzzle velocity in joules, you can easily convert between the two. One foot-pound is equal to 1.4 joules. Therefore, in the above example, the bullet with the muzzle velocity of 431 foot-pounds can also be said to have a muzzle velocity of 585 joules.
The numbers required to solve this formula are usually found on the packaging or literature that comes with your gun and bullets. According to Potomac, LTC, bullet grain can be found on the box the bullets come in or through the manufacturer's website.Learn more about Motion & Mechanics
Calculate average velocity by finding the quotient of the displacement and the total time elapsed. For problems concerning velocity, it is important that you consider the starting and ending position, especially if they are the same. Remember that speed and velocity differ, as speed concerns the total distance covered.Full Answer >
Shear stress is calculated by dividing the force exerted on an object by that object's cross-sectional area. Shear stress is one of the three primary stresses present in nature, which also includes tension and compression. This form of stress is the result of forces applied parallel to a surface. Typically, the symbol for a given stress is the Greek symbol "tau," or "τ."Full Answer >
As explained by Hyperphysics, angular momentum is calculated by finding the product of the moment of inertia and the angular velocity of a rotating body or system. The moment of inertia with respect to an axis is the product of the mass times the distance from the axis squared, and angular velocity is the rate of change of angular displacement.Full Answer >
The maximum height of a projectile is calculated with the equation h = vy^2/2g, where g is the gravitational acceleration on Earth, 9.81 meters per second, h is the maximum height and vy is the vertical component of the projectile's velocity. If the angle of launch or the velocity of the projectile are not known, these quantities can be derived.Full Answer >