Question: Mars Landing In January 2004, NASA landed exploration vehicles on Mars. Part of the descent consisted of the following stages: Stage A: Friction with the

Mars Landing In January 2004, NASA landed exploration vehicles on Mars. Part of the descent consisted of the following stages: Stage A: Friction with the atmosphere reduced the speed from 19,300 km/h to 1600 km/h in 4.0 min.
Stage B: A parachute then opened to slow it down to 321 km/h in 94 s.
Stage C: Retro rockets then fired to reduce its speed to zero over a distance of 75 m.
Assume that each stage followed immediately after the preceding one and that the acce1emtion during each stage was constant.
(a) Find the rocket's acceleration (in m/S') during each stage.
(b) What total distance (in km) did the rocket travel during stages A, B, and C?

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IDENTIFY For constant acceleration Eqs 28 212 213 and 214 apply SET UP Take y to be downward so the ... View full answer

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