A large dam scraper , with a mass of 900kg , is used to build an earth dam by means of a winch system. The slope of the dam wall is 60° to the horizontal and is 18m long .The loading capacity of the dam scraper is 1,5m ^3 of soil and the density of the soil is 3200kg/m^3 . The tractive resistance of the dam scraper up the slope is 650N .calculate:

Question

1.The tensile force in the cable of the winch to pull the loaded dam scraper up the slope.

Answer 1

component of weight down slope = m g sin 60
m = ( 900 + 3200*1.5 ) kg
g = 9.81 m/s^2 or whatever you use on your planet

Tension = 650 + m g sin 60