1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is
A
MV
B
1.5 MV
C
2MV
D
zero
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A person of mass 60 kg is inside a lift of mass 940 kg and presses the button on control panel. The lift starts moving upwards with an acceleration 1.0 m/s2. If g = 10 ms$$-$$2, the tension in the supporting cable is
A
8600 N
B
9680 N
C
11000 N
D
1200 N
3
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 20 English
A
$$\alpha > {{mg} \over \mu }$$
B
$$\alpha > {g \over {\mu m}}$$
C
$$\alpha \ge {g \over \mu }$$
D
$$\alpha < {g \over \mu }$$
4
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
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