Two groups of students were tested to compare their speed working math problems. each group was given the same problems. one group used calculators and the other group computed without calculators. what’s the hypothesis?

The people with caculators will probably answer faster due to thier ablitiy to use a device of technology

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