7. A loaded tractor-trailer with a total mass of 5000 kg traveling at hits a loading dock and comes to a stop in 0.64 s. What is the magnitude of the average force exerted on the truck by the dock

Complete Question

A loaded tractor-trailer with a total mass of 5000 kg traveling at  3.0 km/h hits a loading dock and comes to a stop in 0.64 s. What is the magnitude of the average force exerted on the truck by the dock

The value is  

Explanation:

From the question we are told that

  The total mass is  

  The time taken to come to a stop is

   The initial velocity is

Generally the magnitude of the average force exerted on the truck by the dock is mathematically represented as

Here v is the final velocity which is zero since the truck came to a stop

=>    

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