A truck travelling due north at 20 m / s turns west and travels at the same speed. The change in its velocity is

Question

A truck travelling due north at 20 m / s turns west and travels at the same speed. The change in its velocity is, 40 m s - 1 N - W, 20 2 m s - 1 N - W, 40 m s - 1 S - W, 20 2 m s - 1 S - W

MARKS App · Accepted Answer

The representative figure for the problem is given below:- From the diagram v → 1 = 20 i ^ and v 2 → = - 20 i ^ Therefore change in velocity is Δ v → = v 2 → - v 1 → = - 20 i ^ + j ^ Magnitude of change in velocity Δ v → = 20 2 and direction is θ = t a n - 1 1 = 45 o i.e. S-W

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