1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The force F acting on a particle of mass m is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is :

AIPMT 2014 Physics - Center of Mass and Collision Question 31 English
A
24 N s
B
20 N s
C
12 N s
D
6 N s
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass (m) move perpendicular to each other with equal speeds (v). The total kinetic energy generated due to explosion is :
A
mv2
B
$${3 \over 2}$$mv2
C
2mv2
D
4mv2
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
A solid cylinder of mass 50 kg and radius 0.5 m is free to rotate about the horizontal axis. A massless string is wound round the cylinder with one end attached to it and other hanging freely. Tension in the string required to produce an angular acceleration of 2 revolutions s$$-$$2 is
A
25 N
B
50 N
C
78.5 N
D
157 N
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
The ratio of the accelerations for a solid sphere (mass m and radius R) rolling down an incline of angle $$\theta $$ without slipping and slipping down the incline without rolling is
A
5 : 7
B
2 : 3
C
2 : 5
D
7 : 5
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