For the wheelbarrow shown find the moment of the 100 weight

For the wheelbarrow shown, find the moment of the 100# weight about the center of the wheel. Also, determine the force P required to resist this moment.

Solution

moment of weight 100# about the center of the wheel= W cos 20* 20\"

=100 cos 20 *20\"

=1879.39 #\"

Force P required to resist this moment

Moment of weight # about center of wheel= Moment of P about center of wheel

100cos 20 * 20\"=P cos20 * 28\"

P= 71.43#