Question
If an object starts moving and if there is no friction
at all, what happens?Solution
Friction : • The force of friction always acts in a direction opposite to that in which the body tends to move, which means against the direction of the force. • Till the limiting value is reached, the magnitude of friction is exactly equal to the force which tends to move the body. • The magnitude of the limiting friction bears a constant ratio to the normal reaction between the two surfaces. • The force of friction depends upon the roughness/smoothness of the surfaces. • The force of friction is independent of the area of contact between the two surfaces. • If objects start moving and there is no friction the object can never stop.
Statements:Some students are Rich.
No Rich is a teacher.
Conclusions:I. Some teacher are not Rich.
II. Some Rich are students.
In the given question, two conclusions are given and five statements as 1), 2), 3), 4) and 5). You need to choose the option that contains the set of s...
Statement:
Some ducks are gooses.
All gooses are turkey.
No duck is hen.
No hens are parrot.
Conc...
Statements:
Some P are Q
All Q are R
Some R are S
Conclusions:
I. Some R are not P
II. All R are P
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No mountain is plane.
No river is mountain.Â
Conclusions:
I. No plane is river.
II. All river are ...
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Statements:Â Â Â Â Â
No book is a pencil.
All books are boards.
All boards are dusters.
No eraser is a duster.
...
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...
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...
Statements:
No television is a magazine.
Some magazines are radios.
Some radios are newspapers.
All newspapers are journal...
