Given: Two vectors ~A = Axˆ? + Ay ˆ? and ~B = Bxˆ? + By ˆ? , where Ax = ?4, Ay =

Question

Given: Two vectors
~A
= Axˆ? + Ay ˆ?
and
~B
= Bxˆ? + By ˆ? ,
where Ax = ?4, Ay = 4, Bx = 2, and By = 2.

Find the z component of ~A × ~B

particle starts from the origin at t = 0
with an initial velocity having an x component
of 17.2 m/s and a y component of ?15 m/s.
The particle moves in the xy plane with an
x component of acceleration only, given by
2.92 m/s2.
Determine the x component of velocity af-
ter 5.16 s.
Answer in units of m/s.

Find the speed of the particle after 5.16 s.
Answer in units of m/s.

Find the magnitude of the displacement
vector of the particle after t = 5.16 s.
Answer in units of m.

just ans enough no need of solutions

Explanation / Answer

z component of A x B is -16

x-component of velocity after 5.16 s is 32.3 m/s

speed is 35.6 m/s

magnitude of displacement is 149.26 m

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