SCEN101 Lecture Notes - Lecture 13: 8 Seconds, Simple Machine
27 Mar 2019
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Document Summary
If the masses of two planets doubles and the distance between them reduces by half, the force between them would be. Acceleration due to gravity on earth is 10m/s^2. Throwing something up at 40m/s^2, it would take 4 seconds to get to the peak. 8 seconds to come back to where it started. Passengers in a high jet feel normal weight, passengers in orbiting space are without support forces. A stone is thrown horizontally from the top of a cliff. A quarter of a second after leaving your hand it drops a vertical distance of --- m from the release point. Because it is free fall, only earth"s pull is acting on it. If it is a quarter of a second, it is a quarter of 10, which is 2. 5. In 1 second, things will fall vertically in free fall, however, the distance varies with the square of time. A car moving at 50 km/h skids 20m with locked brakes.
