Posted by **kia** on Tuesday, February 15, 2011 at 11:00am.

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 17.0 m if her initial speed is 3.80 m/s. What is the free-fall acceleration on the planet?

- physics -
**tchrwill**, Tuesday, February 15, 2011 at 1:59pm
The horizontal distance traveled is given by d = V^2(sin(2µ))/g where V = the initial velocity, g = the acceleration due to gravity and µ = the initial angle of the velocity to the horizontal.

Since the maximum d will occur when µ = 45º. Therefore, d = 17 = 3.8^2(1)g. Solve for g.

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