A lift is ascending with decreasing speed. What are the directions of velocity and acceleration of the lift at the given instant.

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Direction of motion is the direction of velocity, Lift is ascending (means it is moving upwards). So, direction of velocity is upwards.

Speed of lift is decreasing. So, direction of acceleration should be in opposite direction or it should be downwards

None of the above

Both 1 and 2

Direction of velocity is downward ..

Speed of lift is decreasing. So, direction of acceleration should be in opposite direction or it should be downwards.

answer is B.

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Detailed Solution

Direction of motion is the direction of velocity, Lift is ascending (means it is moving upwards). So, direction of velocity is upwards.

Speed of lift is decreasing. So, direction of acceleration should be in opposite direction or it should be downwards

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