AIPMT 2010 Mains | Work, Energy and Power Question 38 | Physics

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

A particle of mass M, starting from rest, undergoes uniform acceleration. If the speed acquired in time T is V, the power delivered to the particle is

$${{M{V^2}} \over T}$$

$${1 \over 2}{{M{V^2}} \over {{T^2}}}$$

$${{M{V^2}} \over {{T^2}}}$$

$${1 \over 2}{{M{V^2}} \over T}$$

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 m/s. The mass per unit length of water in the pipe is 100 kg/m. What is the power of the engine?

400 W

200 W

100 W

800 W

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

A ball moving with velocity 2 m/s collides head on with another stationary ball of double the mass. If the coefficient of restitution is 0.5, then their velocities (in m/s) after collision will be

0, 1

1, 1

1, 0.5

0, 2

AIPMT 2009

MCQ (Single Correct Answer)

-1

An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water jet. What is the rate at which kinetic energy is imparted to water?

mv³

$${1 \over 2}m{v^2}$$

$${1 \over 2}{m^2}{v^2}$$

$${1 \over 2}m{v^3}$$

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