Speed, Distance, Time.

Speed, remoteness and clipping The faster something moves, the greater the distance it denys in a given sentence, or the less(prenominal) snip it takes to cover a given distance. For modeling, a car that is driven 100km in 2 hours is going faster than one covering 60km in 2 hours, and the fastest 100m sprinter finishes in the least time. Calculating fixture To work disclose repair the following both things must be cognize: * The distance travelled * The time interpreted to travel that distance Equation This equation shows the consanguinity among speed, distance and time. speed (metres per second, m/s) = distance (metre, m) / time (seconds, s) moral: A person runs 200m in 20s speed = distance/time speed = 200m/20s speed = 10m/s distance = speed x time time = distance / speed This graph shows acceleration: This graph shows deceleration: purpose this triangle to help you rearrange the equation to: change in speed = acceleration x tim e taken time taken = change in speed / acceleration Speed-time graphs A speed-time graph tells us how the speed of an object glass changes over time. Acceleration is caused by a draw out, eg gravity or friction, performing on a locomote object. The stopping distance of a car depends on two factors - opinion distance and braking distance.

Under normal unprompted conditions, the thinking and braking distance depend on the speed of the car. Forces, aggregate and acceleration When an object accelerates it does so because an limited fight is acting on it. For example: * Gravity causes a falling a pple to speed up as it falls. * Air res! istance causes a parachutist to speechless down just after spring the parachute. * The brake pads on a bike cause extra friction, which slows the bike down. The kinship between force, mass and acceleration For the aforementioned(prenominal) mass: * to a greater extent force causes more than acceleration * less force causes less acceleration For the resembling force: * more mass causes less acceleration * less mass causes more acceleration For...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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