A ball ? is always in neutral equilibrium. Explain.

Give a reason why mass of a body is constant everywhere.

An arrow of mass 20g traveling horizontally strikes a block of wood of mass 1980g resting on a horizontal surface. The impact takes 0.2s before the two move together with an initial velocity of 5m/s. Calculate: a. The velocity of the ...

How would you measure the density of an irregular solid such as a glass stopper?

Which rays are used in a TV remote?

Suggest two methods of improving the efficiency of a machine.

Name machine which has velocity ratio less than 1

Draw the scales of a msg showing 2.86mm for a 50 divisions msg