Spacecraft designers want to determine the effect of entry flight-path angle on peak decelerationfor a ballistic entry. The spacecraft’s entry interface velocity (for Earth) is v EI = 7.8 km/s and its...

Spacecraft designers want to determine the effect of entry flight-path angle on peak decelerationfor a ballistic entry. The spacecraft’s entry interface velocity (for Earth) is v_EI
= 7.8 km/s and its ballistic coefficient is 85 kg/m²
. Plot peak deceleration in units of Earth-surface g0 (=9.80665 m/s²
) for entry angles –15 ≤ γEI ≤ –5 and determine the entry flight-path angle where peak deceleration is 20g₀.