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Laws of Motion

270100 In the system shown in figure $m_{1} < m_{2}$ . System is held at rest by thread BC. Just after the thread $B C$ is burnt.

1 acceleration of

m_{1}

will be equal to zero

2 acceleration of

m_{2}

will be downwards

3 magnitude of acceleration of two blocks will be non-zero and unequal

4 magnitude of acceleration of both the blocks will be

\overset{◻ m_{1} - m_{2}}{◻ m_{1} + m_{2}} \overset{◻}{◻^{g}}

Laws of Motion

270101 A lift is ascending with a constant speed "V". A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

1 Zero

2

g

3

<

g

4

< g

Laws of Motion

270102 A reference frame attached to the earth with respective to an observer in space

1 is an inertial frame because Newton's laws of motion are applicable in it

2 is an inertial frame by definition

3 cannot be an inertial frame because earth is rotating about its axis

4 can be an inertial frame because earth is revolving around the sun.

Laws of Motion

270103 A Stationary railway platform on earth is

1 an inertial frame of reference for an observer on earth.

2 a Non inertial frame of reference for an observer on moon

3 both are true

4 both are false

Laws of Motion

270100 In the system shown in figure $m_{1} < m_{2}$ . System is held at rest by thread BC. Just after the thread $B C$ is burnt.

1 acceleration of

m_{1}

will be equal to zero

2 acceleration of

m_{2}

will be downwards

3 magnitude of acceleration of two blocks will be non-zero and unequal

4 magnitude of acceleration of both the blocks will be

\overset{◻ m_{1} - m_{2}}{◻ m_{1} + m_{2}} \overset{◻}{◻^{g}}

Laws of Motion

270101 A lift is ascending with a constant speed "V". A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

1 Zero

2

g

3

<

g

4

< g

Laws of Motion

270102 A reference frame attached to the earth with respective to an observer in space

1 is an inertial frame because Newton's laws of motion are applicable in it

2 is an inertial frame by definition

3 cannot be an inertial frame because earth is rotating about its axis

4 can be an inertial frame because earth is revolving around the sun.

Laws of Motion

270103 A Stationary railway platform on earth is

1 an inertial frame of reference for an observer on earth.

2 a Non inertial frame of reference for an observer on moon

3 both are true

4 both are false

Laws of Motion

270100 In the system shown in figure $m_{1} < m_{2}$ . System is held at rest by thread BC. Just after the thread $B C$ is burnt.

1 acceleration of

m_{1}

will be equal to zero

2 acceleration of

m_{2}

will be downwards

3 magnitude of acceleration of two blocks will be non-zero and unequal

4 magnitude of acceleration of both the blocks will be

\overset{◻ m_{1} - m_{2}}{◻ m_{1} + m_{2}} \overset{◻}{◻^{g}}

Laws of Motion

270101 A lift is ascending with a constant speed "V". A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

1 Zero

2

g

3

<

g

4

< g

Laws of Motion

270102 A reference frame attached to the earth with respective to an observer in space

1 is an inertial frame because Newton's laws of motion are applicable in it

2 is an inertial frame by definition

3 cannot be an inertial frame because earth is rotating about its axis

4 can be an inertial frame because earth is revolving around the sun.

Laws of Motion

270103 A Stationary railway platform on earth is

1 an inertial frame of reference for an observer on earth.

2 a Non inertial frame of reference for an observer on moon

3 both are true

4 both are false

Laws of Motion

270100 In the system shown in figure $m_{1} < m_{2}$ . System is held at rest by thread BC. Just after the thread $B C$ is burnt.

1 acceleration of

m_{1}

will be equal to zero

2 acceleration of

m_{2}

will be downwards

3 magnitude of acceleration of two blocks will be non-zero and unequal

4 magnitude of acceleration of both the blocks will be

\overset{◻ m_{1} - m_{2}}{◻ m_{1} + m_{2}} \overset{◻}{◻^{g}}

Laws of Motion

270101 A lift is ascending with a constant speed "V". A passenger in the lift drops a coin. The acceleration of the coin towards the floor will be

1 Zero

2

g

3

<

g

4

< g

Laws of Motion

270102 A reference frame attached to the earth with respective to an observer in space

1 is an inertial frame because Newton's laws of motion are applicable in it

2 is an inertial frame by definition

3 cannot be an inertial frame because earth is rotating about its axis

4 can be an inertial frame because earth is revolving around the sun.

Laws of Motion

270103 A Stationary railway platform on earth is

1 an inertial frame of reference for an observer on earth.

2 a Non inertial frame of reference for an observer on moon

3 both are true

4 both are false

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