On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be * a. towards the wall at its upper end b. away from the wall at its upper end O c. upwards at its upper end d. downwards at its upper end O e. none of the above Angle of friction is the * a. angle between normal reaction and O the resultant of normal reaction and the limiting friction b. ratio of limiting friction and normal reaction c. the ratio of minimum friction force to O the friction force acting when the body is just about to move d. the ratio of minimum friction force to O friction force acting when the body is in motion e. ratio of static and dynamic friction

Question
Solve please
On a ladder resting on smooth ground
and leaning against vertical wall, the force
of friction will be *
a. towards the wall at its upper end
b. away from the wall at its upper end
O c. upwards at its upper end
d. downwards at its upper end
O e. none of the above
Angle of friction is the *
a. angle between normal reaction and
O the resultant of normal reaction and the
limiting friction
b. ratio of limiting friction and normal
reaction
c. the ratio of minimum friction force to
O the friction force acting when the body
is just about to move
d. the ratio of minimum friction force to
O friction force acting when the body is in
motion
e. ratio of static and dynamic friction
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Transcribed Image Text

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be * a. towards the wall at its upper end b. away from the wall at its upper end O c. upwards at its upper end d. downwards at its upper end O e. none of the above Angle of friction is the * a. angle between normal reaction and O the resultant of normal reaction and the limiting friction b. ratio of limiting friction and normal reaction c. the ratio of minimum friction force to O the friction force acting when the body is just about to move d. the ratio of minimum friction force to O friction force acting when the body is in motion e. ratio of static and dynamic friction