A block weighing 100. newtons is positioned on an incline that makes an angle of 30.° with the horizontal. The magnitude of the friction force between the block and the incline is 10. newtons. A force of 120. newtons is applied by pulling on a rope that makes an angle of 30.° with the incline, as shown.
Calculate the component of the block’s weight parallel to the incline.
Calculate the magnitude and direction of the component of the tension that is useful in moving the block up the incline.
Calculate the magnitude and direction of the block’s acceleration.