2/8/2024 0 Comments Do slomo videos send in slomoCheck out this plot of the vertical motion of the same ball. The more I think about it, the more I don't have a firm grasp of what's happening in the y-direction. What if I make my slow motion part of the video only 10 frames long so that the slowing down transition and the speeding up transition overlap (you might need an iPhone 6 of your own to answer this question). It seems that the slow motion transition takes about 12 frames.As well as relatively standard slow-mo options, such as 120fps, you also get a super-slow motion setting that records at an incredible 960fps. Is the horizontal velocity in my video really constant? Should it be constant? Estimate the air resistance on a tennis ball moving around these speeds. Best vlogging camera for slow motion This is another versatile and pocket-friendly option that comes with a range of features that video and content- creators are sure to make good use of.What about the vertical motion? Can you just use the same idea for the vertical motion? Can I give it an acceleration to make a model work like the slow motion video?.I will leave them as a homework assignment for you. There are still some questions that remain. I suspect that if I play around with the acceleration times, I can get a near perfect match. You can see that it has the same basic shape as the data from the actual video. Let me write the two horizontal velocities (before and during the slow motion) as: However, the iPhone plays this back at 30 frames per second to give it that "slow motion look". During the slow motion part of the video, it is recorded at 240 fps which would mean there are 0.0042 seconds for each frame interval. This means that from one frame to the next is a time interval of 0.033 seconds both in real life and in the video. The normal speed part of the iPhone video plays at 30 frames per second (fps). I am going to go with the constant velocity of 8.07 m/s. I suspect the problem is that I don't have much data for "after" the slow motion to get a good fit. Notice that the slope of the line before and after the slow motion has about the same value at around 8 to 7 m/s. Of course the reason for the non-constant slope is due to the effects from the iPhone 6 slow motion thingy (maybe it has a technical name). You can see in the plot that the x position of the ball does NOT look like a constant velocity. time should be a straight linear function with a slope that is equal to the horizontal velocity of the ball. Since the acceleration in the x-direction (horizontal direction) is zero, the velocity in the x-direction should be constant.
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