Assume that an MX missile goes from rest to a suborbital vel

Assume that an MX missile goes from rest to a suborbital velocity of 7.50 km/s in 80.0 s (the actual speed and time are classified). What is its average acceleration in m/s2?

Solution

Initial velocity = u = 0 m/s

final velocity = v = 7.5km/s = 7500 m/s

time t = 80s

use v = u + at

=> 7500 = a(80)

=> a = 93.75 m/s²

this is the average acceleration of the MX missile.