Newton’s Third Law says that every interaction involves two forces – in this case (1) hammer pushes nail, and (2) nail pushes hammer. When a hammer hits a nail, Newton’s Third Law says that the force that the hammer exerts on the nail is exactly the same size as the force the nail exerts on the hammer.
Where is the force when you hit a nail with a hammer?
Newtons third law states that if a force is exerted on an object, the object exerts a force back . So the nail exerts a force back on the hammer. But it is critical that you understand this. A force is a push or a pull upon an object which results from its interaction with another object.
How much force does a hammer exert on a nail?
Consider that the average force exerted by a hammer striking a nail is about 100 pounds. The sharp nail tip has an area of one-hundredth of a square inch. So the pressure the nail tip exerts on the wood is 100 pounds divided by 1/100 square inch for an amazing 10,000 pounds per square inch!
What is the impact force of a hammer?
A typical dent is on the order of a millimeter, and a typical hammer speed at impact is probably ~ 10 meters/sec. The duration of the impact would be approximately equal to 1/10,000 sec. The force would be on the order of: f=2kg∗20m/sec/((1mm)/(10m/sec)) = 400,000 Newtons .
Does a hammer increase force?
The hammer also increases the strength of the force that is applied to it . It easily pulls the nail out of the board, which you couldn’t do with your hands alone. On the other hand, the hammer decreases the distance over which the force is applied.
Why can’t you hit a feather in midair with a force of 200 N?
You can’t hit a feather in midair with a force of 200 N because the feather is not capable of exerting a 200 N force on you . The forces “you hit feather” and “feather hits you” are a Newton’s Third Law action/reaction force pair, so they must always be exactly equal in size.
What will happen when a hammer strikes and exerts force on a nail?
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail exerts a force of equal strength in the opposite direction on the first object . ... you increase the momentum of an object by Increasing the object’s speed, or its mass.
How can you make a hammer hit a nail with more force?
- increase the mass (heavier hammer)
- move faster (hit harder)
- shorter Δt.
What happens when a hammer hits a nail?
A hammer hits a nail, driving the nail downwards into a piece of wood . The “reaction” is the force of the nail pushing upwards on the hammer, which stops the hammer.
How do you calculate the impact force of a hammer?
When the hammer hits the nail it transfers this energy to the nail in order to move it 1cm (0.01m). A transfer of energy is known as “work done” and work done = force x distance . So, force = work done / distance = 25 / 0.01 = 2500N Answer: Average force = 2500 Newtons.
How fast can a human swing a hammer?
How fast can someone swing a hammer? 10 m.s − 1 is rather fast – the speed of a sprinter or of a hammer dropped from 5 metres. It’s hard to move your hand much faster than that without practice. To accelerate a 2 kg hammer to that speed over half a metre requires a force of 200 N.
How fast is the average hammer swing?
This gives an initial hammer speed of about 29 m/s (or about 65 mph ).
Which would drive a nail deeper into a piece of wood a heavy hammer or a light hammer?
The heavy hammer would drive the nail further than the light hammer because of Law # 2, F = ma. The heavy hammer has more mass and therefore more force against the nail than the light hammer.
Why do levers make our work easier?
Levers make work easier by allowing people to use less force to move a heavier object .
What type of energy is hammering a nail?
A hammer is a tool that utilizes mechanical energy to do work. The mechanical energy of a hammer gives the hammer its ability to apply a force to a nail in order to cause it to be displaced. Because the hammer has mechanical energy (in the form of kinetic energy), it is able to do work on the nail.
