ballistic pendulum sentence in Hindi
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- Robins used the ballistic pendulum to measure projectile velocity in two ways.
- In 1742, Benjamin Robins invented the ballistic pendulum.
- But then they failed to reproduce the effect in a pendulum system, using a rocket-powered ballistic pendulum.
- As the suspended body constituted a ballistic pendulum, this measured the relative momentum of the rounds to some extent.
- In practice, it is often simpler to derive the gun s energy directly with a reading from a ballistic pendulum or ballistic chronograph.
- The ballistic pendulum is still found in physics classrooms today, because of its simplicity and usefulness in demonstrating properties of momentum and energy.
- They built a ballistic pendulum to measure the energy, based on how far the pendulum swung up after being struck by a projectile.
- Although the ballistic pendulum is considered obsolete, it remained in use for a significant length of time and led to great advances in the science of ballistics.
- In addition its primary uses of measuring the velocity of a projectile or the recoil of a gun, the ballistic pendulum can be used to measure any transfer of momentum.
- Unlike other methods of measuring the speed of a bullet, the basic calculations for a ballistic pendulum do not require any measurement of time, but rely only on measures of mass and distance.
- For example, a ballistic pendulum was used by physicist C . V . Boys to measure the elasticity of golf balls, and by physicist Peter Guthrie Tait to measure the effect that spin had on the distance a golf ball traveled.
- This is why a ballistic pendulum relies on conservation of bullet momentum and pendulum energy rather than conservation of bullet energy to determine bullet velocity; a bullet fired into a hanging block of wood or other material will spend much of its kinetic energy to create a hole in the wood and dissipate heat as friction as it slows to a stop.
- The first system to supplant ballistic pendulums with direct measures of projectile speed was invented in 1808, during the Napoleonic Wars and used a rapidly rotating shaft of known speed with two paper disks on it; the bullet was fired through the disks, parallel to the shaft, and the angular difference in the points of impact provided an elapsed time over the distance between the disks.
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