AIEEE 2009 | Motion in a Plane Question 89 | Physics

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 ball is thrown from a point with a speed ν₀ at an angle of projection θ. From the same point and at the same instant person starts running with a constant speed $${{{v_0}} \over 2}$$ to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection θ?

Yes, $$30^\circ $$

Yes, $$60^\circ $$

Yes, $$45^\circ $$

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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