What is the final velocity of an object if it starts from rest and accelerates at a rate of 99.0 meters/second² for 4.50 seconds?
To find the final velocity of an object that starts from rest and accelerates at a constant rate, you can use the equation:
v = u + at
Where:
v is the final velocity,
u is the initial velocity (which is 0 m/s because the object starts from rest),
a is the acceleration,
t is the time taken.
In this case, the initial velocity (u) is 0 m/s, the acceleration (a) is 99.0 m/s², and the time taken (t) is 4.50 seconds.
Plugging these values into the equation, we get:
v = 0 + (99.0)(4.50)
v = 0 + 445.5
v = 445.5 m/s
Therefore, the final velocity of the object after 4.50 seconds of acceleration is 445.5 meters per second.