@Prom
Alright then.
In the NP animation, he goes from ground floor to high enough that sight of the stars is clear and unbroken in about 5 seconds.
Low End: Above the Cloud Layer
The highest, thickest clouds are about 50,000 or more feet (or 15,240 m) above ground level.
15,240 m / 5s = 3048 m/s =
Mach 8.957. Not particularly impressive.
Mid End: To Earth's Orbit
Low-Orbit is between 160 km and 2000 km. Let's settle for 1,000 km.
1,000,000 m / 5 s = 200,000 m/s =
Mach 587.733991
Mid-Orbit is around 2000 km high.
2,000,000 m / 5 s = 400,000 m/s =
Mach 1175.46798 A little high.
High End: To the Exosphere
According to Google, the uppermost edge of the exosphere is 190,000 km high.
190,000,000 m / 5s = 38,000,000 m/s =
Mach 111,669.458 Probably not.