1
AIPMT 2006
+4
-1
A 0.5 kg ball moving with a speed of 12 m/s strikes a hand wall at an angle of 30o with the wall. It is reflected with the same speed at the same angle. If the ball is in contact with the wall for 0.25 seconds, the average force acting on the wall is :
A
96 N
B
48 N
C
24 N
D
12 N
2
AIPMT 2005
+4
-1
A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 m s$$-$$1. The kinetic energy of the other mass is :
A
324 J
B
486 J
C
256 J
D
524 J
3
AIPMT 2004
+4
-1
Consider a system of two particles having masses m1 and m2. If the particle of mass m1 is pushed towards the mass centre of particles through a distance d. by what distance would be particle of mass m2 move so as to keep the mass centre of particles at the original position?
A
$${{{m_1}} \over {{m_1} + m{}_2}}$$d
B
$${{{m_1}} \over {{m_2}}}$$d
C
d
D
$${{{m_2}} \over {{m_1}}}$$d
4
AIPMT 2003
+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
EXAM MAP
Medical
NEET