two soccer players, mary and jane, begin running from approximately the same poi
ID: 2004402 • Letter: T
Question
two soccer players, mary and jane, begin running from approximately the same point at the same time. mary runs in an easterly direction at 4.7 m/s. while jane takes off in a direction of 38.4 degrees north of east at 8.13 m/s. the magnitude of the velocity of jane relative to mary is 5.3 m/s.1. how long is it before they are 22.1 m apart?
2. how far apart are they after 5.4 s?
3. For the intercontinental ballistic missile to
have a range of 17000 km, what must be
the speed v0 of the missile at the end of the
accelaration phase? Take the distance of the
accelaration phase, called the boost time, as
negligible compared to the travel time.
4. An astronaut on a strange planet finds that
she can jump a maximum horizontal distance
of 32.4 m if her initial speed is 10.6 m/s .
What is the acceleration due to gravity on
this planet?
Explanation / Answer
1. 22.1/5.3 = 4.17 s 2. 5.3*5.4 = 18.6 m It is the Cramster's policy that one post for one question. Please ask the rest questions separately.
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