AIPMT 2008 | Center of Mass and Collision Question 30 | Physics

AIPMT 2008

MCQ (Single Correct Answer)

-1

A shell of mass 200 gm is ejected from a gun of mass 4 kg by an explosion that generates 1.05 kJ of energy. The initial velocity of the shell is :

40 ms^$$-$$1

120 ms^$$-$$1

100 ms^$$-$$1

80 ms^$$-$$1

AIPMT 2006

MCQ (Single Correct Answer)

-1

A 0.5 kg ball moving with a speed of 12 m/s strikes a hand wall at an angle of 30^o 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 :

96 N

48 N

24 N

12 N

AIPMT 2005

MCQ (Single Correct Answer)

-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 :

324 J

486 J

256 J

524 J

AIPMT 2004

MCQ (Single Correct Answer)

-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?

$${{{m_1}} \over {{m_1} + m{}_2}}$$d

$${{{m_1}} \over {{m_2}}}$$d

$${{{m_2}} \over {{m_1}}}$$d

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