The y-component of the weight of a 5.00 kg crate that is on a 21.0° hill is 45.57 N
W = m g
W = Weight
m = Mass
g = Acceleration due to gravity
m = 5 kg
g = 9.8 m / s²
W = 5 * 9.8
W = 49 N
Resolving W into its y-component,
θ = 21°
cos θ = Wy / W
Wy = 49 * cos 21°
Wy = 49 * 0.93
Wy = 45.57 N
Therefore, the y-component of the weight is 45.57 N
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