Category Archives: Physics

Average Velocity

Key Equations Speed = distance/time Average Velocity Guidance Speed is the distance travelled divided by the time it took to travel that distance. Velocity is the instantaneous speed and direction. Average velocity is the displacement divided by the time. Example … Continue reading

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Instantaneous Velocity

In a footrace such as the one shown here, the initial velocity of a runner is zero. The runner increases his velocity out of the starting blocks and his velocity continues to increase as the race proceeds. For the well-trained … Continue reading

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Velocity and Acceleration

calculate average acceleration. Key Equations velocity (m/s) initial velocity final velocity change in velocity acceleration Guidance Acceleration is the rate of change of velocity. So in other words, acceleration tells you how quickly the velocity is increasing or decreasing. An … Continue reading

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Average Acceleration

To escape from Earth’s orbit, space shuttles such as the Atlantis shown here must accelerate to 28,968 kilometres per hour, called the shuttle’s escape velocity. Average Acceleration An object whose velocity is changing is said to be accelerating.  Average acceleration, … Continue reading

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Uniform Acceleration

After jumping, this cliff diver undergoes effective free fall. Cliff diving is a sport in which athletes twist and flip on their way down. Even with the air resistance, these divers will accelerate the whole way down. Uniform Acceleration Acceleration … Continue reading

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Acceleration Due To Gravity

  In the absence of air resistance, all objects fall toward the earth with the same acceleration. Parachutists, like the one from the US Army Parachute Team shown above, maximize air resistance in order to limit Man, however, make maximum … Continue reading

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