AIEEE 2010 | Motion in a Plane Question 80 | Physics

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

AIEEE 2004

MCQ (Single Correct Answer)

-1

A projectile can have the same range 'R' for two angles of projection. If T₁ and T₂ be the time of flights in the two cases, then the product of the two time of flights is directly proportional to

$${1 \over R}$$

$${1 \over {{R^2}}}$$

$${R^2}$$

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