Acar uses its brakes to stop on a level road.
during this process, there must be a conversion
of kinetic energy into
(1) light energy
(2) nuclear energy
(3) gravitational potential energy
(4) internal energy

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

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