1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
$$\overrightarrow A $$ and $$\overrightarrow B $$ are two vectors and $$\theta $$ is the angle between them, if $$\left| {\overrightarrow A \times \overrightarrow B } \right| = \sqrt 3 \left( {\overrightarrow A .\overrightarrow B } \right),$$ the value of $$\theta $$ is
A
45o
B
30o
C
90o
D
60o
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A particle starting from the origin (0, 0) moves in a straight line in the (x, y) planes. Its coordinates at a later time are $$\left( {\sqrt 3 ,3} \right)$$. The path of the particle makes with the x-axes an angle of
A
45o
B
60o
C
0o
D
30o.
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A block B is pushed momentarily along a horizontaly surface with an initial velocity V. If  $$\mu $$  is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

AIPMT 2007 Physics - Laws of Motion Question 19 English
A
g$$\mu $$/V
B
g/V
C
V/g
D
V/(g$$\mu $$).
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance d. The net work done in the process is
A
mg(h + d) $$-$$ $${1 \over 2}$$kd2
B
mg(h $$-$$ d) $$-$$ $${1 \over 2}$$kd2
C
mg(h $$-$$ d) + $${1 \over 2}$$kd2
D
mg(h + d) + $${1 \over 2}$$kd2
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