A block moving on an inclined plane making an angle `45^(@)` with the horizontal and the coefficient of friction is `mu` the force required to just push it up the inclined plane is three times the force required to just prevent it from sliding down. If we define `N=10 mu N` then N is
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A block is moving on an inclined plane making an angle 45^@ with the horizontal and the coefficient of friction is mu . The force required to just push it up the inclined plane is 3 times the force required to just prevent it from sliding down. If we define N=10mu , then N is
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Knowledge Check
A brick of mass 2kg just begins to slide down on inclined plane at an angle of 45^(@) with the horizontal. The force of friction will be
A
`19.6 sin 45^(@)`
B
`19.6cos45^(@)`
C
`9.8sin 45^(@)`
D
`9.8cos 45^(@)`
A brick of mass 2kg begins to slide down on a plane inclined at an angle of 45^(@) with the horizontal. The force of friction will be
A
`19.6sin45^(@)`
B
`19.6cos45^(@)`
C
`9.8sin45^(@)`
D
`9.8cos45^(@)`
A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is
A
`mg cos theta`
B
`sqrt(mu^(2) + 1) mg cos theta`
C
`(mumg cos theta)/(sqrt(mu^(2) + 1))`
D
`mumg theta`
RESNICK AND HALLIDAY-FORCE AND MOTION-II-PRACTICE QUESTIONS (Integer Type)
