How do you calculate the force of a catapult?
For example, a distance of 100 meters at 10 seconds is: vh = 100/10 = 10 m/s. So, if the projectile took 5 second to reach maximum height: vv = (9.8)(5) = 49.4 m/s.
What are the physics behind the onager?
The elastic energy of the machine is contained in a cylindrical bundle of twisted elastic cords, and, although each cord satisfies a linear stress-strain law, the geometry of the entire bundle causes a torque to be exerted on the moving arm of the onager which is a nonlinear function of the angular deflection of the …
What is the math behind catapults?
Maths was involved as each part of the catapult was proportional to the size of the object it was designed to propel. For example, the weight and length of the projectile was proportional to the size of the torsion springs.
How do you make a catapult project in physics?
Simple craft stick catapult:
- Stack five craft sticks together and wrap a rubber band around each end.
- Stack two craft sticks and wrap a rubber band around only one end.
- Slide the five sticks in-between the two sticks, as shown.
- Wrap a rubber band where the two sections meet to hold the catapult together.
How do you calculate the velocity of a projectile from a catapult?
Using this you can calculate the vertical component of velocity using a=v/t, where “a” is the acceleration due to gravity (9.81 m/s/s) and “t” is one half of your time of flight (time to reach the highest point). This will give you the initial vertical velocity.
How do you calculate the IMA of a catapult?
A catapult is a 3rd class lever, which means the effort force is in between the load and the fulcrum. To calculate the mechanical advantage you divide the input force by the output force.
How do you calculate the mechanical advantage of a catapult?
How does a catapult work step by step?
How a Catapult Works: The Basics
- Pull the arm back (rope in case of Ballista)
- Place missiles in bucket, sling, or nook.
- Release potential energy. Work is done on the arm.
- Arm collides with with base and is brought to an abrupt stop.
- Missiles retain the kinetic energy from the work done on the arm.
Who made the first onager?
Ammianus Marcellinus
According to other sources, the onager was invented in Greece in the year 385 BCE by the mechanic Ammianus Marcellinus (Robert M. Jurga). A powerful jerk and a machine lift at every shot, Romans called “a kick of a wild donkey”, hence the later name of the machine, onager or donkey.
What is the difference between an onager and a mangonel?
As nouns the difference between onager and mangonel is that onager is a wild ass, equus hemionus , especially the koulan while mangonel is a military engine formerly used for throwing stones and burning objects.
What is the best design for a catapult?
Among the various types of catapults, the trebuchet was the most accurate and among the most efficient in terms of transferring the stored energy to the projectile.