Question
Which of the following statements about the centre of
mass (COM) of a system is always true?Solution
The centre of mass (COM) of a system behaves such that its motion reflects the net effect of all external forces acting on the system. The correct and universally valid statement is that the COM moves as if the entire mass of the system were concentrated at that point and all external forces were applied to it . This principle is foundational in mechanics and applies to all systems, regardless of internal structure or distribution.
Conclusions:
All motor are bus.
Some car are motor.
Some street are not bus.
Statements:
Statements: All counsellors are teachers.
Some teachers are candidates.
All candidates are students.
Conclusions:...
Statements:
Only hands are legs
Few hands are arms
All arms are shoulders
Conclusions:
I. Some hands are shoulder...
Statements:
Some Venice are Godot.
Some Milan are Godot.
Some Italy are Milan.
Conclusions:
I. Some Venice are defini...
Statements:
All shoes are shirts
Only a few shirts are watches
Some watches are not mobile
Only a few mobile are copy
...Statements: All hotels are busses.
Some buses are cars.
All cars are trams.
Some trams are clouds.
Conclusions:I. some trams...
Two statements are given followed by two conclusions numbered I & II. Assuming the statements to be true, even if they seem to be at variance with comm...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
In the question below some statements are given followed by two conclusions I and II. You have to take the given statements to be true even if they see...
Statement:
Only a few Mobile are laptop.
No laptop is pen.
A few pens are pencil.
Conclusion:
I. Some mobile ar...
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