a car sits still at a red light. once the light turns green, the driver accelerates at a rate of 3.5 m/s^2. how far has the car moved after 6 seconds?
Have you ever seen the equation
d = (1/2) a t^2 ?
The "d" stands for distance moved at acceleration rate a, assuming an initial velocity of zero.
Get to know it.... and the correct spelling of the subject. It is not "physic".
http://www.thefreedictionary.com/physic
To calculate the distance the car has moved after 6 seconds, we can use the equation:
Distance = Initial velocity * Time + (1/2) * Acceleration * Time^2
As the car is initially at rest, the initial velocity is 0 m/s. The time is given as 6 seconds, and the acceleration is 3.5 m/s^2. Now we can substitute these values into the equation:
Distance = 0 * 6 + (1/2) * 3.5 * 6^2
Simplifying the equation:
Distance = 0 + (1/2) * 3.5 * 36
= (1/2) * 3.5 * 36
= 63 meters
Therefore, the car has moved 63 meters after 6 seconds.