Questions
A truck travelling due north at 20 ms-1 turns west and travels with same speed. What is the change in velocity?
a
202 ms-1 south-west
b
40 ms-1 south-west
c
202 ms-1 north-west
d
40 ms-1 north-west
detailed solution
Correct option is A
initial velocity 20j^ and final velocity 20(-i^)change in velocity= ∆v⇀=-20i^--20j^∆v⇀=202 along south westTalk to our academic expert!
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