1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A ball is dropped from a high rise platform at t = 0 starting from rest. After 6 seconds another ball is thrown downwards from the same platform with a speed v. The two balls meet at t = 18 s. What is the value of v?
(Take g = 10 m/s2)
A
75 m/s
B
55 m/s
C
40 m/s
D
60 m/s
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+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
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+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 ?

AIPMT 2010 Prelims Physics - Motion in a Plane Question 12 English
A
$$\overrightarrow b + \overrightarrow c = \overrightarrow f $$
B
$$\overrightarrow d + \overrightarrow c = \overrightarrow f $$
C
$$\overrightarrow d + \overrightarrow e = \overrightarrow f $$
D
$$\overrightarrow b + \overrightarrow e = \overrightarrow f $$
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
A block of mass m is in contact with the cart C as shown in the figure.

The coefficient of static friction between the block and the cart is $$\mu $$. The acceleration $$\alpha $$ of the cart that will prevent the block from falling satisfies

AIPMT 2010 Prelims Physics - Laws of Motion Question 17 English
A
$$\alpha > {{mg} \over \mu }$$
B
$$\alpha > {g \over {\mu m}}$$
C
$$\alpha \ge {g \over \mu }$$
D
$$\alpha < {g \over \mu }$$
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