The acceleration is the (final velocity – initial velocity) ÷ time, which is -8 m/s ÷ 2 s = -4 m/s 2. The car has an acceleration of -4 m/s 2. A negative acceleration is called a retardation.

Now I can put in this expression for the final velocity into my time equation. If the acceleration is 9.8 m/s 2 and the distance is 100 meters, this would give a time of 4.52 seconds.

Using this expression for the final velocity, I get the following for the acceleration: Using my values for Δx and Δt, I get an acceleration of 446 m/s 2 or 45.5 g's. That's a pretty large ...

At t 2, the angular velocity is zero, with a non-zero (positive) angular acceleration. At that time, the direction of rotation for BC is changing from CW to CCW. In summary, you should never assume ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...