10 kg ভর এবং 0.2 m ব্যাসার্ধের একটি চাকা 100 rpm এর কৌণিক গতিতে ঘুরছে

A wheel of mass 10 kg and radius 0.2 m is rotating at an angular speed of 100 rpm, when the motion is turned off. Neglecting the friction at the axis. Calculate the force that must be applied tangentially to the wheel to bring it to rest in 10 rev. Assumed wheel to be a disc.

A flywheel is in the form of solid circular wheel of mass 72 kg and radius of 0.5 m and it takes 70 rpm, then the energy of revolution is

Two heavy spheres each of mass 100 kg and radius 0.1 m are placed 1.0 m apart on a horizontal table. What is the gravitational field and potential at the mid point of the line joiningthe centres of the spheres ? Take G= 6.67xx10^(-11)Nm^(2)Kg^(-2) .

A ring of mass 100 kg and diameter 2 m is rotating at the rate of (300/(pi)) rpm. Then

A flywheel of mass 10 kg and radius 10 cm is revolving at a speed of 240 r.p.m. Its kinetic energy is

A whell of mass 4 kg and radius of gyration 0.4 m is making 300 r.p.m. Its moment of inertia is

m_(A) = 1 kg, m_(B) = 2 kg, m_(C) = 10 kg

Two bodies of masses 100 kg and 1000 kg are at a distance 1.00 m apart. Calculate the gravitaional field line joining them. G = 6.67 xx 10^(-11) N m^(2) kg^(-2) .

Mass and length of a metal cube are 10 kg +- 0.1 kg and 1 m +- 0.02 m . Its density with percentage error is