Current location - Information Consultation Platform - Information Investigation - During the earthquake relief activities in Deyang, Sichuan, Tianjin, a transport vehicle with a total weight of G Newton was loaded with materials.

During the earthquake relief activities in Deyang, Sichuan, Tianjin, a transport vehicle with a total weight of G Newton was loaded with materials.

(1) The car has great traction when driving on BC section.

Let the traction of the car be f, and according to P=FV, F = P/V can be obtained.

Also, because P2 is greater than Pl and the speed is constant, the traction of cars in BC section is large.

(2) Let BC be L in length and H in height, which can be obtained from the relation of work.

W=Gh+fL

p2﹙t2-t 1﹚=g﹙h2-h 1﹚+fl

p2﹙t2-t 1﹚=g﹙h2-h 1﹚+fv﹙t2-t 1﹚

f=p2﹙t2-t 1﹚-g﹙h2-h 1﹚/v﹙t2-t 1﹚

Related articles