Trouble finding Fnet without a known mass for an acceleration. Please assist.

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The discussion centers on calculating the net force (Fnet) acting on a car that decelerates while traversing a muddy surface. The car's initial velocity is 22.2 m/s, and it slows to 15.3 m/s over a distance of 25.0 m. The time spent in the muddy area is calculated as 1.33 seconds, and the acceleration is determined to be -5.19 m/s². However, the net force calculation yields -6220 N, which cannot be verified without the car's mass, indicating a critical missing variable in the problem statement.

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1. A car is moving to the right with velocity 22.2 m/s when it enters an area having a soft, muddy surface. If the soft surface is only 25.0 m long, but the car slows to 15.3 m/s while going through the muddy area, answer the following:

A) What length of time (in seconds) was the car in the muddy area?

B) What acceleration did the car experience?

C) What was the value of the net force causing the acceleration?



2. 2d/vi+vf=ΔT
a=vf^2-vi^2/2d
Fnet=ma



3. A) ΔT=1.33s

B) a=-5.19m/s

C) Answer is apparently -6220 N but I don't know how to get it.



I have trouble getting C. I don't have a mass so I'm not sure how to find Fnet. I feel like I'm missing a relationship here.
 
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Without the mass you cannot determine the force. Did you leave any information out of the problem statement?
 

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