What deceleration of the rocket sled if it comes to rest in 1.1 s from a speed of 1000 km/h? (Such deceleration caused one test subject to black out and have temporary blindness.)
We can answer this question by referring to the definition of acceleration–change in velocity over change in time. That is
Before substituting the given values, the units should be homogeneous. We will convert 1000 km/hr to m/s.
We substitute the values into the equation,
The deceleration is about 252.5252 meters per second per second.