AIPMT 2004 | Work, Energy and Power Question 52 | Physics

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

AIPMT 2001

MCQ (Single Correct Answer)

-1

A particle is projected making an angle of 45^o with horizontal having kinetic energy K. The kinetic energy at highest point will be

$${K \over {\sqrt 2 }}$$

$${K \over 2}$$

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