AIPMT 2004 | Work, Energy and Power Question 49 | Physics

AIPMT 2004

MCQ (Single Correct Answer)

-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 :

E₁ < E₂

$${{{E_1}} \over {{E_2}}} = {{{m_1}} \over {{m_2}}}$$

E₁ > E₂

E₁ = E₂

AIPMT 2004

MCQ (Single Correct Answer)

-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

$$\sqrt 2 $$ : 1

1 : 4

1 : 2

1 : $$\sqrt 2 $$

AIPMT 2003

MCQ (Single Correct Answer)

-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

40 m/s²

640$$\pi $$ m/s²

160$$\pi $$ m/s²

40$$\pi $$ m/s²

AIPMT 2003

MCQ (Single Correct Answer)

-1

When a long spring is stretched by 2 cm, its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be

U/5

10U

25U

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