Answer:
d. 2.24 m/s²
Step-by-step explanation:
Acceleration: This is defined as the rate of change of velocity. The S.I unit of acceleration is meter per seconds squared. (m/s²). Acceleration is a vector quantity, and its is represented in one of newtons equation of motion.
which is expressed below.
S = ut + 1/2at²............................ Equation 1
making a the subject of the equation above,
a =2(S-ut)/t²..................... Equation 2
Where a = acceleration, S =distance, u = initial velocity, t = time taken
Given: s= 28 m, u = 0 (from rest), t = 5.00 s.
Substituting these values into equation 2
a = 2(0×5 + 28)/5²
a = 56/25
a = 2.24 m/s²
Therefore the acceleration of the body is 2.24 m/s²
The right option is d. 2.24 m/s²