AIEEE 2011 | Motion in a Plane Question 67 | Physics

A water fountain on the ground sprinkles water all around it. If the speed of water coming out of the fountain is v, the total area around the fountain that gets wet is :

$$\pi {{{v^4}} \over {{g^2}}}$$

$${\pi \over 2}{{{v^4}} \over {{g^2}}}$$

$$\pi {{{v^2}} \over {{g^2}}}$$

$$\pi {{{v^2}} \over g}$$

AIEEE 2010

MCQ (Single Correct Answer)

-1

A particle is moving with velocity $$\overrightarrow v = k\left( {y\widehat i + x\widehat j} \right)$$, where K is a constant. The general equation for its path is

y = x² + constant

y² = x + constant

xy = constant

y² = x² + constant

AIEEE 2009

MCQ (Single Correct Answer)

-1

A particle has an initial velocity $$3\widehat i + 4\widehat j$$ and an acceleration of $$0.4\widehat i + 0.3\widehat j$$. Its speed after 10 s is:

$$7\sqrt 2 $$ units

7 units

8.5 units

10 units

AIEEE 2005

MCQ (Single Correct Answer)

-1

A particle is moving eastwards with a velocity of 5 m/s. In 10 seconds the velocity changes to 5 m/s northwards. The average acceleration in this time is

$${1 \over 2}m{s^{ - 2}}$$ towards north

$${1 \over {\sqrt 2 }}m{s^{ - 2}}$$ towards north-east

$${1 \over {\sqrt 2 }}m{s^{ - 2}}$$ towards north-west

zero

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