Interactive LearningWare 18.2 provides one approach to solving problems such as this one. The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +10.9C; the other two have identical magnitudes, but opposite signs: q2 = -4.19C and q3 = +4.19C. (a) Determine the net force exerted on q1 by the other two charges. (b) If q1 had a mass of 1.50 g and it were free to move, what would be its acceleration?

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

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

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..