How to do you take fast moving objects on DSLRs?

I want to know how to take fast moving objects such as spinning rifles. I don't want the motion blur. I have a nikon d3000 with 18-55 mm lens vr and 70-300 mm lens

Added (1). And please don't be posting stuff that is not helpful. I understand shutter speeds and iso settings etc. I'm new to these stuff and currently taking photo 1 at my school.

How is it that you have a DSLR but don't understand something as basic as shutter speed?

Shutter priority with a shutter speed of probably 1/1600? Could be faster.
Shutter speed controls motion blur. The faster the shutter opens and closes the less blur you get.
If your shutter is open for a long time you or your subject can move. If your shutter opens and closes extremely fast you can't get as much movement in.

You have to "balance" three main components of the camera: Shutter Speed, Aperture, and ISO (ASA). The Shutter Speed is how quickly the shutter opens, allowing light to pass through it, and then closes. It is measured in fractions of a second. Typically, if you go lower slower than 1/60th of a second (or on your camera will probably just read as 60) you begin to affect the photo's clarity from your own movement, so this would not be good for capturing fast moving objects. Depending on how fast they move, you want to increase the shutter speed in order to eliminate motion blur. However, when you increase shutter speed, you reduce the amount of light that passes through the iris, which could cause underexposure if you haven't compensated with a higher ISO and/or Aperture. Aperture is how wide the iris opens, and each f stop, or point on the dial, the amount of light doubles or halves respectively, depending on which way you turn it. Most lenses, and I'm guessing the ones you have are included in this (unless you spent thousands of dollars on them, go as high as 3.5, (the lower the number, the higher or wider the aperture [more light]).So if you are shooting something moving fast, and you increase the shutter speed, you reduce the light, which means you may want to increase the amount of light by increasing the aperture. The "downside" of this, depending on your preference, is that the wider the aperture, the more depth of field, meaning that whatever is outside of your point of focus, will be blurred. Squint your eyes, and notice how things become clearer… Same with the camera. If you want everything in focus, from foreground to background, you may not want to increase the aperture too much… But then how do you compensate for the increased shutter speed? The ISO will allow for light compensation as well. In Film SLR, the ISO refers to the films sensitivity to light. The higher the number, the more sensitive it is to light. So if you are shooting in the dark, you may want to use something as high as 3200 ISO so that you don't get completely black photos. Your DSLR mimics this ISO internally. Again, the "downside" of this is that the higher the ISO, the grainier the photo. So again, depending on your preference (you may like grain) you may not want to go too high on the ISO. In summation, I would say to shoot a car in motion, for instance, with a 70mm set at f/3.5 i might want to shoot at about 1/200th of a second, but that is a guess. Try things out, different settings. But knowing how to balance is an art. I shoot now with a Medium Format Hasselblad that has no light meter on it, and use my DSLR to gauge how the film may turn out, simply because I lack the foresight to predict the outcome. Some are much better and can do it just by straight shooting. It takes practice.