One way to measure g on another planet or moon by remote sensing isto measure ho
ID: 1663322 • Letter: O
Question
One way to measure g on another planet or moon by remote sensing isto measure how long it takes an object to fall a given distance. Alander vehicle on a distant planet records the fact that it takes3.17 s for a ball to fall freely 11.26 m starting from rest.What is the acceleration due to gravity on that planet?Express your answer in m/s^2.
I know I have to use this formula
D = Vot + 1/2gt^2
Since the initial velocity (Vo) is 0 the formula thenbecomes:
D = 0 + 1/2gt^2
substituting 3.17s and the given distance :
11.26m = 0 + 1/2g10.0
11.26m = 0 +5g
2.52 = g
Is this correct?
What is the acceleration due to gravity on that planet?Express your answer in earth g's.
I am not sure if my current g for the planet is correct but ifit is am I supposed then
divide planet g / earth g (9.81) ???
How fast is the ball moving just as it lands?
I have no clue on how to start this one.
What is the acceleration due to gravity on that planet?Express your answer in m/s^2.
I know I have to use this formula
D = Vot + 1/2gt^2
Since the initial velocity (Vo) is 0 the formula thenbecomes:
D = 0 + 1/2gt^2
substituting 3.17s and the given distance :
11.26m = 0 + 1/2g10.0
11.26m = 0 +5g
2.52 = g
Is this correct?
What is the acceleration due to gravity on that planet?Express your answer in earth g's.
I am not sure if my current g for the planet is correct but ifit is am I supposed then
divide planet g / earth g (9.81) ???
How fast is the ball moving just as it lands?
I have no clue on how to start this one.
Explanation / Answer
Sorry, missed part c vf2 = v02 +2ax vf2 = 02 + 2(2.24)(11.26) vf2 = 50.5 v = 7.10 m/s
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