1
AIPMT 2010 Prelims
+4
-1
A particle has initial velocity $$\left( {3\widehat i + 4\widehat j} \right)$$ and has acceleration $$\left( {0.4\widehat j + 0.3\widehat j} \right).$$ Its speed after 10 s is
A
7 units
B
$$7\sqrt 2$$ units
C
8.5 units
D
10 units
2
AIPMT 2010 Prelims
+4
-1
Six vectors, $$\overrightarrow a$$ through $$\overrightarrow f$$ have the magnitudes and directions indicated in the figure. Which of the following statements is true ?

A
$$\overrightarrow b + \overrightarrow c = \overrightarrow f$$
B
$$\overrightarrow d + \overrightarrow c = \overrightarrow f$$
C
$$\overrightarrow d + \overrightarrow e = \overrightarrow f$$
D
$$\overrightarrow b + \overrightarrow e = \overrightarrow f$$
3
AIPMT 2008
+4
-1
A particle shows distance - time curve as given in this figure. The maximum instaneous velocity of the particle is around the point

A
D
B
A
C
B
D
C
4
AIPMT 2007
+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
EXAM MAP
Medical
NEET