A 1200-kg car pushes a 2100-kg truck that has a dead battery to the right. When

Question

A 1200-kg car pushes a 2100-kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500 N.

Sort the following forces as relevant or not relevant to this situation. The symbols are defined as follows: normal force = n , tension force = T , horizontal force of the road on the car = F rc, horizontal force of the road on the truck = F rt, weight = w , force of the car pushing on the truck = F ct, and force of the truck pushing on the car = F tc.

Which are relevant?

Which are not relevant?

Thank you

Explanation / Answer

given
m = 1200 kg
M = 2100 kg

force on wheels of car F = 4500 N
normal reaction force n is perpendiucualr to the direction of motion and not relevent in this case
Horizontal force on the car Fc is 4500 N and is form the road. it is relevant and wil lbe uised in force bnalance of the car
horizontal force of the road ont he truck is also relevcant
weight is perpenduicular to dfierciton of motion so is not relevant
fore of car pushing hte truck and force of truck pushing the car are action reactino paris and asre importqant for individual force balance on the vehicles

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