Then I got a problem regarding the live wires, is it possible that if you touch a high voltage wire but no ground connection, the potential energy can't be lethal? Thanks
Sir, If I place my hand flush against the wall and try to push the wall, does it mean I am applying force on the wall. Since FORCE = MASS X ACCELERATION ACCELERATION = VELOCITY / TIME VELOCITY = DISPLACEMENT / TIME Since there is no displacement between my hand and the wall therefore velocity becomes 0 and as a consequence Acceleration becomes 0 and hence Force becomes 0. So does that mean I am applying 0 force on the wall ? Am I right or wrong Sir, please explain where I've gone wrong if I did. I searched a lot on the Internet and UA-cam but didn't find suitable answer for situation mentioned above
In Newton's second law, force refers specifically to the *net force* acting on the object. You may be applying a force to the wall, but there are other forces acting on the wall too, like from the ceiling and the floor. These forces balance the force you apply to the wall, so the net force on the wall is zero and it does not accelerate. But your individual applied force is not zero.
the reason why your hand's displacement, velocity, acceleration and force becomes zero because the wall exerts an equal and opposite force on your hand canceling out the force which you apply making it 0.
MY FAVOURITE KHAN ACADEMY AND PHYSICS
Then I got a problem regarding the live wires, is it possible that if you touch a high voltage wire but no ground connection, the potential energy can't be lethal? Thanks
Sir,
If I place my hand flush against the wall and try to push the wall, does it mean I am applying force on the wall.
Since FORCE = MASS X ACCELERATION
ACCELERATION = VELOCITY / TIME
VELOCITY = DISPLACEMENT / TIME
Since there is no displacement between my hand and the wall therefore velocity becomes 0 and as a consequence Acceleration becomes 0 and hence
Force becomes 0. So does that mean I am applying 0 force on the wall ?
Am I right or wrong Sir, please explain where I've gone wrong if I did.
I searched a lot on the Internet and UA-cam but didn't find suitable answer for situation mentioned above
In Newton's second law, force refers specifically to the *net force* acting on the object. You may be applying a force to the wall, but there are other forces acting on the wall too, like from the ceiling and the floor. These forces balance the force you apply to the wall, so the net force on the wall is zero and it does not accelerate. But your individual applied force is not zero.
the reason why your hand's displacement, velocity, acceleration and force becomes zero because the wall exerts an equal and opposite force on your hand canceling out the force which you apply making it 0.
float head physics ❣
❤
Hiiii NeeTu
👁️👄👁️
Much better explanation than the whole rat family thing