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MCQs-PYQs-12th-jee

A circular track of radius 300 m is banked at an angle π/12 radian. If the coefficient of friction between wheel of a vehicle and road is 0.2, the maximum safe speed of vehicle is

MCQs-PYQs-12th-jee

When a ceiling fan is switched off, its velocity falls to half in 36 rotations. How many more rotations it will make?

MCQs-PYQs-12th-jee

A particle describes a horizontal circle at the mouth of a funnel type vessel as shown in figure. The surface of the funnel is frictionless. The velocity of the particle in terms of and will be

MCQs-PYQs-12th-jee

A particle completes 1.5 revolutions in a circular path of radius 2 cm. The angular displacement of the particle will be – (in radian)

MCQs-PYQs-12th-jee

A flywheel rotates at a constant speed of 3000 rpm. The angle described by the shaft in radian in one second is

MCQs-PYQs-12th-jee

A wheel covers a distance of 9.5 km in 2000 revolutions. The diameter of the wheel is

MCQs-PYQs-12th-jee

Two cars going round curve with speeds one at 90 km/h and other at 15 km/h. Each car experiences same acceleration. The radii of curves are in the ratio of

MCQs-PYQs-12th-jee

The angular speed of a motor increases from 600 rpm to 1200 rpm in 10s. What is the angular acceleration of the motor

MCQs-PYQs-12th-jee

An electric fan 15 rotating at\a speed of 600 rev/minute. When the power supply is stopped, it stops after 60 revolutions. The time taken to stop is

MCQs-PYQs-12th-jee

A grinding wheel attained a velocity of 20 rad/sec in 5 sec starting from rest. Find the number of revolutions made by the wheel

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