Question

An object accelerates at 3.0 m/s2 in a time of 20 seconds. What is the final velocity of

the object if it started from rest (Vi = 0 m/s).

Answer 1

The final velocity of an object that accelerates from rest at 3.0 m/s² for 20 seconds is 60.0 m/s.

Step-by-step explanation:

The question asks for the final velocity of an object accelerating from rest at 3.0 m/s2 for a time of 20 seconds. To find the final velocity (Vf) of an object that started from rest, we can use the basic kinematic equation:

Vf = Vi + (a * t)

Where,
Vi = initial velocity (0 m/s, since the object started from rest),
a = acceleration (3.0 m/s2),
t = time (20 seconds).

Substituting the given values into the equation:

Vf = 0 m/s + (3.0 m/s2 * 20 s)
= 60.0 m/s.

Therefore, the final velocity of the object is 60.0 m/s after 20 seconds of acceleration.