Question

Is tension force equivalent to applied force?

Answer 1

So let's say there is a tension force of 360N acting on a 30kg object on a flat surface with no friction. Acceleration can be calculated using the newton's second law F=ma such that
360N=30kg(a) a=12/s^2

Answer 2

@IrishBoy123

Answer 3

if the object is being pulled by a rope, then the force on the object and the tension in the rope are one and the same, yes

with our usual assumption that the rope is massless

Answer 4

The rope is indeed not very massless but I hope physicists are smart enough to account for everything elseXD

Answer 5

we assume the rope is massless so the problem will be easier

Answer 6

Question: Where is gravity?

Answer 7

i forget why it is easier to assume rope is massless

Answer 8

flat surface and frictionless

Answer 9

The problem indicates to tension and friction, but gravity is there still.

Answer 10

ah, yes, but it is acting orthogonal to motion so indeed you would have R = mg in the up down direction equalling zero

Answer 11

if the rope is not massless then the tension is greater the further away from the block you are pulling because that part of the rope is pulling the block and the rest of the rope

in addition you will have a force downwards on the rope - gravity

Answer 12

Because no friction, so that the box moves with constant velocity and total force is as shown.

Answer 13

Actually, I don't know, hehehe... I forgot all of my physics knowledge. @IrishBoy123 rely on you. :)