Questions
A truck travelling due north at 20 m/s turns west and travels at the same speed. The change in its velocity be
a
40 m/s N-W
b
202 m/s N-W
c
40 m/s S-W
d
202 m/s S-W
detailed solution
Correct option is D
From figurev1→ = 20j^ and v→ 2 = −20i^|Δv→| = v2→−v1→ =−20(i^+j^)|Δv→| = 202 and directionθ = tan-1(1) = 450i.e., S-WTalk to our academic expert!
Similar Questions
Statement A: Addition of vectors obeys Associative law
Statement B: Subtraction of vectors obeys Distributive law
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