The cement bag shown in the figure has a mass of 50 kg and the small pulley has a mass of 2 kg. if the cement bag is pulled upwards with an acceleration of 2 m/s^2, find the force f pulling the rope.

For the cement bag we can say as per its force diagram we will have

here we will have

now we will have

now plug in all data

so the pulling force will be 295 N

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray