8. in a children-park an inclined plane is constructed with an angle of incline 45° in the middle part (figure 6-e1). find the acceleration of a boy sliding on

8. In a children-park an inclined plane is constructed with an angle of incline 45° in the middle part (figure 6-E1). Find the acceleration of a boy sliding on it if the friction coefficient between the cloth of the boy and the incline is 06 and g= 10 m/s.