Propeller blades in aeroplane are 2 m long,
When propeller is rotating at 1800 rev/min, compute the tangential velocity of tip of the blade.

Propeller blades in aeroplane are 2 m long. when propeller blade is rotating at 1800 rev/min, What is the tangential velocity at a point on blade midway between tip and axis.?

If the blades of an aeroplane are 4 m long and rotate at the rate of 600 rpm, then the angular velocity will be

An automobile engine develops 60pi kilowatt of power when it is rotating at the speed of 1800 rev/min, then the torque it can transfer to the wheels is

A rod of length 15 m stands vertically on the ground with one end hinged to the ground. When it falls on the ground such that it rotates without slipping, the velocity of the upper tip on striking the ground is

A body of mass m is rotated along a verticle circle with the help of a light string such that velocity of the body at any point is critical. If T1 and T2 are tensions in the string when the body is crossing the highest and lowest points of the vertical circle respectively, then

A string breaks under a load of 4 kg. A mass weighing 200 g is attached to the end of this string which is one metre long and rotation when the string breaks, Is nearly(g=10 m//s^2 )

A body of mass 10 kg is attached to a wire 0.3 m long. Its breaking stress is 4.8xx10^(7)N//m^(2). The area of cross-section of wire is 10^(-6)m^(2). What is the maximum angular velocity with which it can be rotated in a horizontal circle?