1
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
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, its maximum speed will be
A
10 m/s
B
5 m/s
C
8 m/s
D
15 m/s
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A particle is projected making an angle of 45o with horizontal having kinetic energy K. The kinetic energy at highest point will be
A
$${K \over {\sqrt 2 }}$$
B
$${K \over 2}$$
C
2K
D
K
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Two springs A and B having spring constant KA and KB (KA = 2KB) are stretched by applying force of equal magnitude. If energy stored in spring A is EA then energy stored in B will be
A
2EA
B
EA/4
C
EA/2
D
4EA
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