The equation of motion of a missile is x

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Three-dimensional Geometry

Question:

The equation of motion of a missile is x = 3t, y = -4t, z = t where time 't' is in seconds and the distance is measured in kilometres.

At what distance will the rocket be from the point (0, 0, 0) in 5 seconds?

Options:

$\sqrt{450}$ kms

$\sqrt{550}$ kms

$\sqrt{650}$ kms

$\sqrt{750}$ kms

Correct Answer:

$\sqrt{650}$ kms

Explanation:

The correct answer is Option (3) → $\sqrt{650}$ kms