What are trade unions?

A union is an association of workers whose purpose is to defend the labor rights of the sector they represent and to promote initiatives, projects and laws of their interest.

Explanation:

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a. formula: f=ma or f/m=a

10,000n/1,267kg≈7.9m/

b. formula: a= and s=d/t

speed= 394.6/15

s=26.3m/s

a=

a=1.75m/

c. 7.9-1.75=difference of 6.15m/

d. the force that most likely caused this difference is friction forces

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