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Introductory Physics Homework Help
Need help with 2 Kinematics questions (New to forum and physics)
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[QUOTE="callieferg, post: 6249254, member: 668457"] [B]Hints for[B] Problem #2:[/B][/B] It is given that the spacecraft traveled a distance of 32 au (the distance between Earth and its closest approach point to Pluto). The first thing we need to do is convert 32 au into kilometers, since the speed of light is given in units of km/s. ##32 \text{ au} = 1.50 \times 10^8 \text{ km}## ##(1.50 x 10^8)(32) = 4.80 \times 10^9 \text{ km}## The question asks for the time it takes for light to travel from the spacecraft back to Earth at ##3.8 \times 10^5 \text{ km/s}##. So, we already know that the distance is: ##Δx=4.80 \times 10^9 \text{ km}## And it's given that: ##v=3.8 \times 10^5 \text{ km/s}## So, all you need to do now is solve for t. [/QUOTE]
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Introductory Physics Homework Help
Need help with 2 Kinematics questions (New to forum and physics)
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