When the Prime Minister arrives in the capitol, she is greeted by a silent tractor-beam that pulls her into a secret hideout only 3.00 m from where she was standing still. The
tractor-beam is strong, pulling her in only .240 s. What acceleration (m/s2) did the beam
give the Prime Minister?
ANSWER: 104 m/s2

c)as speed changes, wavelength and frequency change.

everything changes!

i will answer your question if you answer mine

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

because if the tool that you are using is not balanced it there would be false mass.