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Momentum is when an object or a person starts to move and keeps on moving. Momentum is calculated by a formula: Momentum = Mass x Velocity. For example if someone weighed 50kg and a velocity of 3m/s they would have a momentum of 150kg m/s. Objects that have a large amount of momentum can be difficult to stop for example a rugby player with a large mass and who can run fast would be very hard to stop, this is way momentum is important in multiple sports. In a 100m sprint an elite athlete would reach their peak at 50m and from then onwards try and hold that speed, after 80m the athlete would started to decrease because they’d run out of ATP-PC compared to an average sprinter who reaches their peak at 60m then onwards would not be able to maintain their speed and start to drop in speed. According to my 50m sprint, which is not 100% accurate due to human reaction speed at each marker. From 0m-5m it took me 0.72 seconds, this is not my largest acceleration speed because I was stationary and did not have any momentum. Compared with 10m-15m it took me 0.68 seconds over the same amount of distance due to the reason I had momentum behind me and because this is when I started to accelerate at this moment in time I was going 7.35 m/s. Once I reached the 30m I was at my peak of 8.77m/s from this moment onwards I tried to maintain my speed, from 30m-50m I was running at 7.9m/s, which means I started to decelerate from 30m-50m. This deceleration may be because of multiple reasons; human error with the stop watch, losing my grip due to the wet grass whilst wearing sneakers not runners or sprint shoes or I ran out of

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