Answer:
Average acceleration is- 4.5 [tex]\frac{m}{s^{2} }[/tex]
Given:
[tex]v_{1}[/tex] = 45 m/s
[tex]v_{2}[/tex] = 0 m/s
t = 10 s
To find:
Average acceleration = ?
Formula used:
Average acceleration = [tex]\frac{\Delta v}{\Delta t}[/tex]
Solution:
Average acceleration is given by,
a = = [tex]\frac{\Delta v}{\Delta t}[/tex]
a = [tex]\frac{0 - 45}{10}[/tex]
a = - 4.5 [tex]\frac{m}{s^{2} }[/tex]
Thus average acceleration is - 4.5 [tex]\frac{m}{s^{2} }[/tex] . Negative sign shows that it is deceleration.
