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yardy_genius
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Homework Statement
An air craft has an initial velocity of 90(i+ j)ms-1and a final velocity of 10(10i + 10j +3k) ms-1. The time taken for this change to occur is 100 s. Determine the:
a)average velocity for the 100 s period.
b)average speed for the period.
c)constant acceleration of the airplane in unit vector notation.
d)magnitude of the acceleration.
e)vertical height the plane has risen.
f)distance plane traveled for the 100 s period
Homework Equations
The Attempt at a Solution
I have calculated all the above but i am confused as to which one of the vectors to state as the variable.
using the formula S= ut + 0.5at^2
i got the unit vector form (9500i + 9500j+ 1500k) this is correct.
now the solution says the vertical height is 1500k, but i thought 9500j was the vertical component. can some please explain this to me.
my answer