January 21, 2017

Homework Help: Physics

Posted by Anonymous on Friday, May 28, 2010 at 1:44pm.

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 19300km/h to 1600km/h in 4.0min
Stage B: A parachute then opened to slow it down to 321km/h in 94s
Stage C: Retro rockets then fired to reduce its speed to zero over a distance of 75m
Assume that each stage followed immediately after the preceding one and that the acceleration during each stage was constant.

part 1) Find the rocket's acceleration (in m/s^2) during stages A,B,and C.

Part 2) Find the total distance the rocket traveled (in km) during stage A,B,and C.

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