(adsbygoogle = window.adsbygoogle || []).push({}); 1. Hello, I need to devise myself a practical coursework and i have chosen to find out how several variables effect the power of a swinging mass striking an object.

Variables:

I will use a motor to swing an arm of 30cm with a 1kg mass attached to the end with a time period of 1 second. The arm will be swung around parallel to the floor (not like a windmill) and i will vary to following to see the effects it has on strength:

Firstly i will do the test varying the length of the arm

Secondly i will do the test varying the weight of the mass

Thirdly i will do the test verying the time period

2. Relevant equations

I am not sure of what equations to use but have found on wikipedia several equations on power such as

power = work/time

power = force x displacement

power(t) = Torque(t) x Angular Velocity(t)

which of these if any do i use and does anyone have any suggestion or hints and tips on how to make this practical experiment go well?

thanks

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# Homework Help: Test of power on a swinging mass striking an object

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