What is the speed of a car that travels 150m in 120 s​

1.25 m/s

Explanation:

divide 120 by 120 to get one second and then divide 1t0 by 120 to get the number

wavelegth as in spectrum red oygbiv

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