How come in free fall you feel weightless even though gravity is pulling down on you?

A student wearing sharp pointed heeled shoes is likely to damage a soft wooden floor. Explain.

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

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 ...

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

Distingush between Bernoulli’s effect and Bernoulli’s principle.

what is the difference between limiting and dynamic forces of friction?

Which rays are used in a TV remote?

Explain why the handle of a door is placed as far as possible from the hinges. Explain why it is easier to loosen a tight nut using a spanner with a long handle than the one with a short handle.