1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The relation between time t and distance x is t = ax2 + bx where a and b are constants. The acceleration is
A
2bv3
B
-2abv2
C
2av2
D
-2av3
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
A parachutist after bailing out falls $$50$$ $$m$$ without friction. When parachute opens, it decelerates at $$2\,\,m/{s^2}.$$ He reaches the ground with a speed of $$3$$ $$m/s$$. At what height, did he bail out?
A
$$182$$ $$m$$
B
$$91$$ $$m$$
C
$$111$$ $$m$$
D
$$293$$ $$m$$
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
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?
A
$${{8h} \over 9}$$ meters from the ground
B
$${{7h} \over 9}$$ meters from the ground
C
$${h \over 9}$$ meters from the ground
D
$${{7h} \over {18}}$$ meters from the ground
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-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
A
R
B
$${1 \over R}$$
C
$${1 \over {{R^2}}}$$
D
$${R^2}$$
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