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Derivation of Position-Time Relation by Graphical Method

How to find m...

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How to find magnitude of velocity from differentiation

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Q. A particle is projected from ground at angle

45^{\circ}

with initial velocity

20 \sqrt{2} m / s .

Find magnitude of average velocity in a time interval from

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t = 3 s

. Round off to the nearest integer.

Q. In one second, a particle goes from point A to point B moving in a semicircle. Find the magnitude of the average velocity.

Q. The wind appears to blow from north to a man moving in the north-east direction. When he doubles his velocity, the wind appears to move in the direction cot

^{- 1}

(2) east of north. If the actual magnitude of velocity of the wind is

V = \frac{1}{\sqrt{x}} \times

magnitude of velocity of man and direction along east. Find

x

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from the origin (with

x > 0

v \propto \frac{1}{\sqrt{x}}

. Find how magnitude of the force

(F)

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Derivation of Position-Time Relation by Graphical Method

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