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.?

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.

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

Two identical magnetic dipoles of magnetic moments 1*0Am^2 each are placed at a separation of 2m with their axes perpendicular to each other. What is the resultant magnetic field at a point midway between the dipoles?

An electric fan has blades of length 30 cm as measured from the axis of rotation. If the fan is rotating at 1200 rpm , find the acceleration of a point on the tip of a blade.

The moment of inertia of a disc about an axis passing through its centre and perpendicular to its plane is 20 kg m^2 . Determine its moment of inertia about an axis passing through a point midway between the centre and a point on the circumference, perpendicular to its plane.

The position of an object moving along the x axis is given by x = a + bt^2 where a = 8.5 and b= 2.5 m s^2 and t is measured in second. What is the velociity at t=0 s and t= 2s? What is the average velocity between t= 2 s and t=4s?

The M.I. of a disc about an axis passing through its centre and perpendicular to its plane is 10 kgm^2 ,Determine its M.I. about a parallel axis: Passing through a point midway between the centre and the rim.

A homogeneous rod XY of length 'L' and mass 'M' pivoted at the centre C such that it can rotate freely in vertical plane. Initially the rod is in the horizontal position .A blob of wax of same mass M as that of the rod falls vertically with the speed 'V' and the sticks to the rod midway between points 'C' and 'Y'. If the rod rotates with angular speed omega what will be angular speed in terms of V and L?

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 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?