Recent content by angotta

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    Power question involving sprinter

    1. A 50.0 sprinter, starting from rest, runs 56.0 in 9.40 at constant acceleration What is the magnitude of the horizontal force acting on the sprinter? What is the sprinter's power output at 1.10 , 3.70 , and 5.20 ? 2. Homework Equations I would imagine f=ma and possibly some...
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    Energy Problem Involving Spring Force

    1. As a 1.7×104 jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. The cable is attached to a spring with spring constant 6.0×104 . If the spring stretches 31 to stop the plane, what was the plane's landing speed? (Answer in m/s) 2. Homework Equations...
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    Momentum problem involving collision of two objects.

    That helped a lot thank you
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    Momentum problem involving collision of two objects.

    1. A tennis player swings her 1000 g racket with a speed of 5.00 . She hits a 60 g tennis ball that was approaching her at a speed of 13.0 . The ball rebounds at 37.0 . Part A:How fast is her racket moving immediately after the impact? You can ignore the interaction of the racket with her hand...
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    Newton III problem involving two objects in space

    Thank you I found the answer to be 62.8 m which was correct.
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    Newton III problem involving two objects in space

    Im sorry we are asked to find how far apart are the astronaut and the satellite are after 1.50 ?
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    Newton III problem involving two objects in space

    Homework Statement An 93.0 spacewalking astronaut pushes off a 620 satellite, exerting a 120 force for the 0.470 it takes him to straighten his arms Homework Equations FA on S=FS on A Xf=Xi+Vi\Deltat+1/2a(\Deltat)2 Those are the equations I think I use. And initial velocity...