it is when a truck or tractor pulls a sled at a fair
Gravitational potential energy pulls objects back down
gravity
gravity's force pulls it back
The restoring force pulls a system back to equilibrium. It is a force that opposes the displacement of an object away from its equilibrium position, working to bring the system back to its stable state. Examples include tension in a spring or gravity in a pendulum.
The force that pulls boats back is typically drag, which is caused by resistance from the water as the boat moves through it. This drag force can slow down the boat and make it more difficult to maintain forward motion.
Some of the laws regarding tractor pulls in the UK are, a tractor should not be going over 32km/h and the maximum weight is 24,390kg. You can find out more at the website uktractorpulling.
As the tractor pulls plows or other things the weight gets pulled back onto the rear wheels, to carry that weight and not sink into the ground they need to be large.
The force that pulls the material of a nuclear explosion back into a star is gravity. Gravity is the attractive force between objects with mass, and in the case of a star, it is the force that keeps the star's material gravitationally bound together despite the energy released in a nuclear explosion.
Gravity is the force that pulls objects towards each other, such as the force that pulls you down towards the Earth's surface.
Gravity is the force that pulls downwards on a rocket as it is launched into space. Gravity acts to pull the rocket back towards the Earth's surface.
tractor