When a ceiling fan is switched off its angular velocity reduces to 50% while it makes 36 rotations. How many more rotation will it make before coming to rest?(assume uniform angular retardation)
Options
A cyclist is riding with a speed of 27 km/h.As he approaches a circular turn on the road of radius 80 m,he applies brakes and reduces his speed at the constant rate of 0.5 m/s […]
Find the maximum velocity with which a train can be moved on a circular track of radius 200 m.The banking of the track is 5.71°(Given, tan5.71°= 0.1)
Options
(a) 1.4 m/s (b) 14 […]
An aicraft executes a horizontal loop of radius 1 km with a speed of 900 kmh⁻¹.Ratio of centripetal acceleration to acceleration due to gravity is
Options
(a) 12.3 (b) 3.3 (c) 6.4 (d) […]
A coin placed on a rotating turn table just slips,if it is placed at a distance of 8 cm from the centre.If angular velocity of the turn table is doubled, it will just slip at […]
A boy whirls a stone in a horizontal circle of radius 1.5 m and at height 2.0 m above level ground.The string breaks and the stone flies off tangentially and strikes the ground after travelling […]
For a particle in a non-uniform accelerated circular motion correct statement is
Options
(a) velocity is radial and acceleration is transverse (b) velocity is transverse and acceleration is radial only (c) velocity is […]
A stone of mass 1kg is tied to a string 4m long and is rotated at constant speed of 40 ms⁻¹ in a vertical bottom is (take ,g = 10ms⁻² )
Options
(a) […]
A road of width 20m forms an arc of radius 15m, its outer edge is 2m higher than its inner edge.For what velocity the road is banked?
Options
(a) √10 ms⁻¹ (b) √14.7 […]
A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant spped. If the stone makes 22 revolutions in 44 s, what is the […]
2017-2025 Copyright Doctor Dreams Training Academy - About Us - Privacy Policy - Terms & Conditions - Contact Us - Refund Policy