friction
When pushing an object, the force being applied is a contact force called mechanical force. This force is generated by the interaction between the pushing object and the object being pushed. It causes the object to accelerate in the direction of the push.
No, work is only done on an object when there is displacement in the direction of the force applied. If the object does not move, then no work is being done on it.
The object is the fan and the reaction force is the air being pushed forward by the fan blades as they spin.
[object Object]
Generally it is transferred into heat and sound while the object is being pushed.
Wheel and axle
The radiation is being totally reflected.The object is absorbing momentum from the radiation, and is experiencinga force ... being 'pushed' ... in the direction that the radiation was travelingbefore the bounce.I'm not making that up.
inertiaInertia
wheel and axle
The force required to push something can be measured using a force gauge. This device can be attached to the object being pushed, and the force applied can be read from the gauge. The force needed will depend on factors such as the weight of the object, the surface it's being pushed on, and the presence of friction.
Force is not a fictitious force; it is a centripetal force that acts towards the center of a circle to keep an object in uniform circular motion. The sensation of feeling pushed outward is due to inertia, as an object's natural tendency is to move in a straight line. The centripetal force counteracts this tendency, causing the object to move in a circle.
inertiaInertia