A vehicle having a mass 500 kg moving with speed of 10 m/s. Sand is dropped into it at the rate of 10kg/min .What force is needed to keep the vehicle moving with uniform speed?
Answers
Answered by
4
Dear Student,
F=dpdtF=d(mv)dtF=mdvdt+vdmdtTo maintain a constant speed : dvdt=0So, F=vdmdtF=10 msec×10 kgmin=10 msec×1060 kgsecF=106 kg msec2F=1.67 N
F=dpdtF=d(mv)dtF=mdvdt+vdmdtTo maintain a constant speed : dvdt=0So, F=vdmdtF=10 msec×10 kgmin=10 msec×1060 kgsecF=106 kg msec2F=1.67 N
Similar questions