Grade 11General Physics
Please write full solutions of these two questions ........................................................
Please write full solutions of these two questions ........................................................
1 Answer
Zachariah Abraham
Approved Tutor Answer9 Years agoWell, I don’t know how to do the 2nd one, but here’s the answer to the first:
Rearranging for our convenience:
Now, you may notice that 
and 
are two co-initial vectors forming sides of the parallelogram 
Hence, their resultant is the diagonal, i.e. 
So now, the expression becomes:
which gives,
which gives,
Again, note that 
and 
form two co-initial sides of the parallelogram 
Hence, their resultant is the diagonal, i.e.
Hence, their resultant is the diagonal, i.e.
Now the expression reduces to
which gives:
It's easy to see that 
Thus, the answer is
Thus, the answer is
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