A moving trailer with a speed of 70km/h slows down its speed by 15% within 30 seconds. calculate the declaration of the trailer. pls answer logically

declaration = - 0.55 m/s²

Step-by-step explanation:

The declaration is a negative accelaration.

Therefore:

a      = ?

v      =70 of 15% = 10.5 km/h to m/s = 2.9 m/s

u=70 km/h to m/s = 19.4 m/s

t=30 seconds

a = - 0.55 m/s²

i think asking google will you get the answer to that question

x = 23.78

step-by-step explanation: