Let F = [F] lb. a) Determine the force Fp acting at roller D. b) Determine...

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Let F = [F] lb. a) Determine the force Fp acting at roller D. b) Determine the force FE acting at pin E. F 4 ft B 600 lb. ft -3 ft C -3 ft OD -2 ft- E Let F = [F] lb. a) Determine the force Fp acting at roller D. b) Determine the force FE acting at pin E. F 4 ft B 600 lb. ft -3 ft C -3 ft OD -2 ft- E