A velocity field is given by V! =ax3^i+bxy3^j, where a=1m−2s−1 and b=1m−3s−1. Find the equation of the streamlines. Plot several streamlines in the first quadrant.

explanation:

the masses of the objects and the distance between them

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

the ima (higher than 1m) will be greater than the ima with the height of 1m.