State four differences between a single fixed pulley and a single movable pulley.

Differentiate between Single fixed and Single movable pulley.

State four differences between physical and chemical changes.

A single fixed pulley is used because it:

The mechanical advantage of an ideal single movable pulley is:

What would be the period of the free oscillations of the system shown here if mass M_(1) is pulled down a little force constant of the spring is k , mass of fixed pulley is negligible and movable pulley is smooth

A block of mass m is tied to one end of a spring which passes over a smooth fixed pulley A and under a light smooth movable pulley B . The other end of the string is attached to the lower end of a spring of spring constant K_2 . Find the period of small oscillation of mass m about its equilibrium position (in second). (Take m=pi^2kg , K_2k=4K_1 , K_1=17(N)/(m). )

Give two reasons why the efficiency of a single movable pulley is not 100%.