Acrate of mass 89 kg is loaded onto the back of a flatbed truck. the coefficient of static friction between the box and the truck bed is 0.34. what is the smallest radius of curvature that the truck can take without the crate slipping, if the speed with which it is going around a circle is 35 m/s?

d is the correct answer

0.19 m/s and 0.45 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