Final answer:
The correct answer is option B, with the car's acceleration calculated to be 7 m/s² using the formula a = Δv / Δt and the given velocities and time.
Step-by-step explanation:
The correct answer is option B, which states that the car's acceleration is 7 m/s². We can determine this by using the formula for acceleration, which is defined as the change in velocity (Δv) over the change in time (Δt). Given the final velocity (v_f) is 35 m/s, the initial velocity (v_i) is 0 m/s, and the time (t) is 5 seconds, we apply the formula:
The correct answer is option B) 7 m/s².
To calculate acceleration, we use the formula:
acceleration = (change in velocity) / (time)
In this case, the change in velocity is 35 m/s (final velocity) - 0 m/s (initial velocity) = 35 m/s.
The time is given as 5 seconds.
Plugging these values into the formula, we get:
acceleration = (35 m/s) / (5 s) = 7 m/s².
So, the car's acceleration is 7 m/s².