Assignment. (3)
(1a)
Centripetal agitate is the hollo given to a draw and quarter which produces centripetal acceleration. Any crusade in a curved path represents accele assessd motion, and requires a force directed towards the centre of curvature of the path. Centripetal force means centre seeking force.
Centripetal Force is the stellate force which acts ON a rotating mass and Centrifugal Force is the radial force which is exerted BY a rotating mass.
(1b)
Centripetal acceleration is the inwards acceleration necessary to maintain circular motion. If a point moves at uniform quicken in a circular path, its direction is continually changing and, therefore, though its speed is constant its velocity is changing. Acceleration is defined as rate of change of velocity with respect to time
Centripetal Acceleration (a) =v² (Linear Velocity)
r
Centripetal Acceleration (a) =w²r (Angular Velocity)
(2)a
atomic pile1000kg (m)
Radius of Curve45m (r)
Coefficient Friction0.7 (u)
Track of Vehicle1.5m(d)
meaning of Gravity0.68m(h)
Acceleration (force of gravity)9.81 m/s²(g)
Without skidding outwards,
Centrifugal force = Frictional resistance to skidding = m v² = u m g
r
Max stimulate v = ?u g r
=? 0.7 x 9.81 x 45
=? 309.015
= 17.5788 m/s
Convert to km/h= (17.5788m/s x 3.6) = 63.
3 km/h
Without overturning,
Overturning moment = Righting moment = m v²h = m g d
r 2
Max Speed V= ?g r d
2 h
=? 9.81 x 45 x 1.5
2 x 0.68
=? 225.1395
= 15.0046 m/s
Convert to km/h= (15.0046m/s x 3.6) = 54 km/h
(2)b
Rotating Bobs250g (each)
dance Strength8 kN/m
Centre Mass of Bob160mm roentgen (resting)
Balance of forces = F + R = Mw²r
At Engagement,
F= ineptness x Extension
= 8 x 1000 x 12
1000
= 96 N
(Radius of Rotation r= 160 + 12 = 177mm (convert to metres 177 = 0.177m)...If you want to urinate a full essay, order it on our website: Orderessay
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