The answwr would be d and c becasuase it just would
Resident 4 is the correct answer.
The speed is
v = 5t² + 4t
where
v is in m/s, and t in s.
The acceleration is the derivative of the velocity. It is
a = 10t + 4
When t = 2 s, the acceleration is
a(2) = 10*2 +4 = 24 m/s²
Answer: 24 m/s²
Work has not been done as there is no distance moved. Work done is equal to force*distance