Given Data:
mass (m) = 50 Kg
W = m*g = 50×9.81 = 490.5 N
Coefficient of static friction (μs) = 0.5773
ramp angle = 30 degrees
determine Normal force=?
From the figure we know that
Normal force (N) = μs.W cosΘ
= 0.5773 ×490.5×cos 30
= 245.22 N
Therefore, The Normal force = 245.23 N