In 1980, over San Francisco Bay, a large yo-yo was released from a crane. Suppose the yo-yo was 160 kg, and it consisted of two uniform disks of radius 34.7 cm connected by an axle of radius 3.47 cm. What was the magnitude of the acceleration of the yo-yo during (a) its fall and (b) its rise? (c) What was the tension in the cord on which it rolled?

a straight line sloped

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