Respuesta :
acceleration = change in velocity / time
acceleration = (44 -2) /12
acceleration = 3.5
acceleration = (44 -2) /12
acceleration = 3.5
Answer: Option (d) is the correct answer.
Explanation:
Acceleration is the change in velocity with respect to time.
Mathematically, a = [tex]\frac{dv}{dt}[/tex]
where a = acceleration
dv = change in velocity
dt = change in time
It is given that initial velocity is 2.0 m/s and final velocity is 44.0 m/s. Chenge in time is 12 seconds. Therefore, calculate the acceleration as follows.
a = [tex]\frac{dv}{dt}[/tex]
= [tex]\frac{44.0 m/s - 2.0 m/s}{12 seconds}[/tex]
= [tex]\frac{44.0 m/s - 2.0 m/s}{12 seconds}[/tex]
= [tex]\frac{42.0 m/s}{12 seconds}[/tex]
= [tex]3.5 m/s^{2}[/tex]
Thus, we can conclude that acceleration of rock is [tex]3.5 m/s^{2}[/tex].
