A jet accelerates from rest down a runway at 1.75m/s² for a distance of 1500 m before takeoff. a). How fast is the plane moving at takeoff?

b). How long does ot take the plane to travel down the runway?​

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Why don't you see your reflection in water with waves or repples