Question

What is the final speed of an object that starts from rest and accelerates uniformly at 4. 0 meters per second 2 over a distance of 18. 0 meters?.

Answer 1

12 m/s

Step-by-step explanation:

The final speed of an object that is subjected to uniform acceleration can be calculated using the equation:

v^2 = u^2 + 2as

where v is the final speed, u is the initial speed (in this case, 0 m/s since the object starts from rest), a is the acceleration (4.0 m/s^2 in this case), and s is the distance traveled (18.0 m in this case).

Plugging in the values, we have:

v^2 = 0 + 2 * 4.0 * 18.0

v^2 = 144

v = √(144)

v = 12 m/s

So the final speed of the object is 12 meters per second.