Related Questions

A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
A P = W tanα
B P = W tan (α + φ)
C P = W (sinα + μcosα)
D P = W (cosα + μsinα)
Plane P take off at 2:00 am and flies at a constants speed of Xmph. Plane Q takes off at 3:30 am and flies the same forte as plane p but travels at a constant X, how many hours after 3:30 am will plane Q overtake plan P?
A 1.5x/y +0.5
B 2
C 4
D 5
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
A body will begin to move down an inclined plane if the angle of inclination of the plane is _________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is
A 32
B 36
C 4
D None of these
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
A Friction
B Limiting friction
C Repose
D Kinematic friction
The sun reaches its maximum angular distance from the equator at the ________
A Zenith
B Solstice
C Equinox
D Noontime
The angular distance of a heavenly body from the equator, measured along its meridian, is called
A Declination
B Altitude
C Zenith distance
D Co-latitude
The difference between the diameter of the Earth at the poles and at equator is
A 27 miles
B 36 miles
C 48 miles
D 57 miles

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