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The answer is 52.5 N because 105 is second tension in the string and we ask to calculate the force tending to lift the load off the ground so:since it is bending it will be vertical and then the calculation will be Fx=F*sin30 and sin30 is 1\2,Fx=105*1\2 w...

H=ut+1\2gt"2 but since its horizntally from the top of a hill,the laws says that u=0,so it will be 1\2gt"2,1\2*10*5"2=5*25,then the answer is 125m