1
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
2
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
3
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
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 400 g comes down with a velocity 25 m/s. The velocity of other part is (Take g = 10 ms$$-$$2)
A
40 m/s
B
50 m/s
C
100 m/s
D
60 m/s
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