1
AIPMT 2004
+4
-1
A ball of mass 2 kg and another of mass 4 kg are dropped together from a 60 feet ball building. After a fall of 30 feet each towards earth, their respective kinetic energies will be in the ratio of
A
$$\sqrt 2$$ : 1
B
1 : 4
C
1 : 2
D
1 : $$\sqrt 2$$
2
AIPMT 2004
+4
-1
A particle of mass m1 is moving with a velocity v1 and another particle of mass m2 is moving with a velocity v2. Both of them have the same momentum but their different kinetic energies are E1 and E2 respectively. If m1 > m2 then :
A
E1 < E2
B
$${{{E_1}} \over {{E_2}}} = {{{m_1}} \over {{m_2}}}$$
C
E1 > E2
D
E1 = E2
3
AIPMT 2004
+4
-1
A mass of 0.5 kg moving with a speed of 1.5 m/s on horizontal smooth surface, collides with a nearly weightless spring of force constant k = 50 N/m. The maximum compression of the spring would be

A
0.15 m
B
0.12 m
C
1.5 m
D
0.5 m
4
AIPMT 2003
+4
-1
A particle moves along a circle of radius $$\left( {{{20} \over \pi }} \right)$$ m with constants tangential acceleration. If the velocity of vthe particle is 80 m/s at the end of the second revoluation after motion has begun, the tangential acceleration is
A
40 m/s2
B
640$$\pi$$ m/s2
C
160$$\pi$$ m/s2
D
40$$\pi$$ m/s2
EXAM MAP
Medical
NEET