1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A man weight 80 kg. He stands on a weighting scale in a lift which is moving upwards with a uniform acceleration of 5 m/s2. What would be the reading on the scale ? (g = 10 m/s2)
A
zero
B
400 N
C
800 N
D
1200 N
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A monkey of mass 20 kg is holding a vertical rope. The rope will not break when a mass of 25 kg is suspended from it but will break if the mass exceeds 25 kg. What is the maximum acceleration with which the monkey can climb up along the rope ? (g = 10 m/s2)
A
5 m/s2
B
10 m/s2
C
25 m/s2
D
2.5 m/s2
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
When a long spring is stretched by 2 cm, its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be
A
U/5
B
5U
C
10U
D
25U
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A stationary particle explodes into two particles of masses m1 and m2 which move in opposite directions with velocities v1 and v2. The ratio of their kinetic energies E1/E2 is :
A
m2/m1
B
m1/m2
C
1
D
m1v2/m2v1
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