Answer:
Explanation:
When a body slips down an inclined plane , force of weight acting on it in downward direction = mgsinθ. , m is mass , θ is inclination of plane.
reaction force of the floor = mgcosθ
friction force preventing its motion = μ x mgcosθ , μ is coeffiecient of kinetic friction
net force on it = mgsinθ - μ x mgcosθ
acceleration = net force / m
= gsinθ - μ x gcosθ
= gsin.56 - .39 x gcos.56
= 9.8 x .53 - .39 x 9.8 x .84
= 5.194 - 3.21
= 1.984 m /s².
