Centripetal Acceleration
Trending Questions
- vr2m
- vrm
- mv2r
- mvr
- Have a horizontal inward component
- Be vertical
- Equilibriate the centripetal force
- Be decreased
A car moving on a horizontal road may be thrown out of the road in taking a turn
Due to lack of sufficient centripetal force
Due to rolling frictional force between tyre and road
Due to the reaction of the ground
By the gravitational force
A 100 kg car is moving with a maximum velocity of 9 m/s across a circular track of radius 30 m. The maximum force of friction between the road and the car is
1000 N
706 N
200 N
270 N
A stone is tied to one end of a string 50 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 10 revolutions in 20 s, what is the magnitude of acceleration of the stone
493cm/s2
720cm/s2
720cm/s2
990cm/s2
A cycle wheel of radius 0.4 m completes one revolution in one second then the acceleration of a point on the cycle wheel will be
0.8 m/s
0.4 m/s
1.6π2 m/s2
0.4π2 m/s2
Two particles of equal masses are revolving in circular paths of radii r1 and r2 respectively with the same speed. The ratio of their centripetal forces is
r2r1
(r1r2)2
(r2r1)2
√r2r1
A ball of mass 0.1 Kg. is whirled in a horizontal circle of radius 1 m. by means of a string at an initial speed of 10 R.P.M. Keeping the radius constant, the tension in the string is reduced to one quarter of its initial value. The new speed is
5 r.p.m.
14 r.p.m.
10 r.p.m.
20 r.p.m.
A body is revolving with a constant speed along a circle. If its direction of motion is reversed but the speed remains the same, then which of the following statement is true
The centripetal force will not suffer any change in magnitude
The centripetal force will have its direction reversed
The centripetal force will not suffer any change in direction
The centripetal force would be doubled
A car sometimes overturns while taking a turn. When it overturns, it is
The inner wheel which leaves the ground first
The outer wheel which leaves the ground first
Both the wheels leave the ground simultaneously
Either wheel leaves the ground first