1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The distance travelled by a particle starting from rest and moving with an acceleration $${4 \over 3}$$m s$$-$$2, in the third second is
A
$${{10} \over 3}$$ m
B
$${{19} \over 3}$$ m
C
6 m
D
4 m
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A particle moves in a straight line with a constant acceleration. It changes its velocity from 10 ms$$-$$1 to 20 ms$$-$$1 while passing through a distance 135 m in t second. The value of t is
A
12
B
9
C
10
D
1.8
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The positions x of a particle with respect to time t along x-axis is given by x = 9t2 $$-$$ t3 where x is in metres and t in seconds. What will be the position of this particle when it achieves maximum speed along the + x direction ?
A
54 m
B
81 m
C
24 m
D
32 m
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A car moves from X to Y with a uniform speed vu and returns to Y with a uniform speed vd. The average speed for this round trip is
A
$$\sqrt {{v_u}{v_d}} $$
B
$${{{v_d}{v_u}} \over {{v_d} + {v_u}}}$$
C
$${{{v_u} + {v_d}} \over 2}$$
D
$${{2{v_d}{v_u}} \over {{v_d} + {v_u}}}$$
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