# In a children-park an inclined plane is constructed with an angle of incline 45o in the middle part (figure 6-E1). Find the acceleration of a boy eliding on It ifthe friction coefficient between the clothof the boy and the incline is 0.6 and g = 10 m/s2.

let the mass of the boy= m

Angle of inclination θ= 45o

Coefficient of friction = 0.6

According to the figure given below,

The force due to which boy is sliding down is

Acceleration of the boy a= = = m/s2

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