A man climbs a ladder. which quamtities can be used to calculatethe useful power of the man

Explanation:

Power is the rate at which work is done. It is expressed as:

     Power  =  

To find the power of the man climbing the ladder, we must know the work he is doing and the duration of the work done.

 Work done  = force x distance

  Since he climbs,

           Force  = weight  = mg (mass x acceleration due to gravity)

    distance  = height = h

Power  =

t is the time

    If we know these parameters, we can find the power.

prndulum needs thread, weight clock to time swings

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;