When its engine supplies a force of 506 kg-wt, a car of mass 912 kg moves with constant velocity up a hill of inclination . If the total resistance to the car’s motion is of its weight, what is the angle of inclination, ? Give your answer to the nearest minute.
A body was placed on the top of a rough inclined plane of length 259 cm and height 84 cm. The body started sliding down the plane. Given that the coefficient of friction was 0.29, find the acceleration of the body. Take .
In a factory, boxes are transferred from one area to another via a rough inclined slope of length 13 m and height 12 m. The boxes are released from rest at the top of the slope and left to slide down freely. Given that the coefficient of friction between the plane and a box is 0.27, find the speed of a box when it reaches the bottom of the slope rounded to two decimal places. Take the acceleration due to gravity .