Asquirrel drops an acorn onto the head of an unsuspecting dog. the acorn falls 4.0 m before it lands onthe dog. we can ignore air resistance.

well please specify if we can ignore air resistance, first we need to find out the wind speed, the mass of the acorn, and the volume.

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