AIEEE 2004 | Motion Question 177 | Physics

A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in $${T \over 3}$$ seconds?

$${{8h} \over 9}$$ meters from the ground

$${{7h} \over 9}$$ meters from the ground

$${h \over 9}$$ meters from the ground

$${{7h} \over {18}}$$ meters from the ground

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

$${1 \over R}$$

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

$${R^2}$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

An automobile travelling with speed of 60 km/h, can brake to stop within a distance of 20 m. If the car is going twice as fast, i.e 120 km/h, the stopping distance will be

60 m

40 m

20 m

80 m

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, $$45^\circ $$

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