A dated box of dates, of mass 4.50 kg, is sent sliding up a frictionless ramp at an angle of `theta` to the horizontal. Figure 5-46 gives, as a function of time t, the component `v_(x)` of the box's velocity along an x axis that extends directly up the ramp. What is the magnitude of the normal force on the box from the ramp ?

Explanation

42.6 N