Q)
(chatquestion)...9) Maximum safety speed for a vehicle is 72 km/hr to negotiate a plane curved road safely. Radius of curvature
of the curve is 100 m. The coefficient of friction between the road and tyres is
a) 0.2
b) 0.3
c) 0.4
d) 0.5
A cylindrical drum of radius 1.0 m is rotating around a vertical axis with a speed of 60 rpm. A small body
placed at a point on the inner wall remains stationary. If g= 10 m/s', the coefficient of friction between the
body and the wall of the eyclinder is ..
a) 0.10
b) 0.15
d) 0.25
c) 0.20
1) The equation between angular displacement 0 and time t 0 = Ar + B where A and B are constants. The
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