1
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 21 English
A
$$\alpha > {{mg} \over \mu }$$
B
$$\alpha > {g \over {\mu m}}$$
C
$$\alpha \ge {g \over \mu }$$
D
$$\alpha < {g \over \mu }$$
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The mass of a lift is 2000 kg. When the tension in the supporting cable is 28000 N, then its acceleration is :
A
4 m s$$-$$2 upwards
B
4 m s$$-$$2 downwards
C
14 m s$$-$$2 upwards
D
30 m s$$-$$2 downwards
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
A body, under the action of a force $$\overrightarrow F = 6\widehat i - 8\widehat j + 10\widehat k,$$ acquires an accelerations of 1 m/s2. The mass of this body must be
A
10 kg
B
20 kg
C
10$$\sqrt 2 $$ kg
D
2$$\sqrt {10} $$ kg
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
AIPMT 2008 Physics - Laws of Motion Question 20 English

Three forces acting on a body are shown in the figure. To have the resultant force only along the y-direction, the magnitude of the minimum additional force needed is
A
$${{\sqrt 3 } \over 4}N$$
B
$${\sqrt 3 }$$ N
C
0.5 N
D
1.5 N
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