Question

a car starts from rest and after 5 seconds is traveling at 25m/s. assuming that it continues to accelerate at the same rate it will take another: 10, 5, 2.5, 0.125 or 0 seconds to reach 50 m/s

Answer 1

The car will take 10 seconds to reach 50 m/s.

Step-by-step explanation:

To find how long it will take for the car to reach 50 m/s, we need to determine the acceleration of the car.

Given that the car starts from rest and reaches 25 m/s after 5 seconds, we can use the formula:
Acceleration (a) = (Final Velocity (v) - Initial Velocity (u)) / Time (t)

Substituting the values, we get:
a = (25 - 0) / 5 = 5 m/s²

Now, we can use the formula:
Final Velocity (v) = Initial Velocity (u) + (Acceleration (a) * Time (t))

Substituting the values, we get:
50 = 0 + (5 * t)
t = 10 seconds

Therefore, it will take 10 seconds for the car to reach 50 m/s.