Speed, Time and Distance Concepts and FormulasPoints to remember:1.) Speed: The rate at which an object is moving is known as its speed. It is the distance traveled per unit time e.g. an object moving at 20 m/s shows that the object covers a distance of 20 meters every second. The formula for speed: Speed = Therefore, Time = And, Distance = Speed x Time 2.) A man covers a certain distance D1 km at a speed of S1 km/hr and, D2 km at a speed of S2 km/hr, his average speed during the whole journey is given by: Average speed =km/hr 3.) A man travels from P to Q at a speed of S1 km/hr and returns from Q to P at S2 km/hr, his average speed during the whole journey is given by: Average speed = 4.) Two men A and B start travelling at the same time from points P and Q towards each other and after crossing each other A takes time T1 to reach Q and B takes time T2 to reach P,: 5.) If a man travels at of his usual or original speed, the change in time taken to cover the same distance is given by: Change in time = * usual or original time 6.) A man covers a distance D in time T1 with speed S1. When he travels at speed S2 and covers the same distance D in time T2,; You can equate any two of the above relations to find the unknown values. 7.) A body covers a certain distance at a speed of S1 km/hr without stoppage and with stoppage it covers the same distance at S2 km/hr, the stoppage time per hour is given by: Speed Time and Distance Aptitude Test Paper 1 Speed Time and Distance Aptitude Test Paper 2 Speed Time and Distance Aptitude Test Paper 3 Speed Time and Distance Aptitude Test Paper 4 Speed Time and Distance Aptitude Test Paper 5
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