- #1
vinnyzwrx
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Homework Statement
A particle moving in the xy plane undergoes a displacement ⃗s = (sx ˆi + sy ˆj), with sx = 1.74 m, sy = 4.3 m, while a constant force
F⃗ = (Fxˆi+Fyˆj), with Fx = 5.1 N, Fy = 1.95 N, acts on the particle.
Calculate the magnitude of the displacement.
Answer in units of m.
Find the magnitude of the force. Answer in units of N.
Calculate the work done by F⃗ . Answer in units of J.
Calculate the angle between F⃗ and ⃗s. Answer in units of degrees.
Homework Equations
The Attempt at a Solution
i took the dot product of the two thinking i would get the magnitude of the displacement. I am lost as to why it is incorrect?
1.74*5.1 + 4.3*1.95 = 17.259