You hold a cord/rope with length l, mass m and density p in such a way that it just touches a scale/balance (don't forget that l = mp). then, you release the rope. calculate the weight that you can read on the display of the balance when the last piece of the cord/rope touches it.

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

explanation:

continuous conducting path for current, power supply

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards