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It describes how quickly or slowly an object moves from one place to another. The standard (SI) unit of speed is meters per second (m/s), but it can also be expressed in other units, such as kilometers per hour (km/h), miles per hour (mph), or feet per second (ft/s), depending on the context or the country's measurement system.
May 1, 2024 · Our calculator finds that v r e s = 16.55 km/h v_{\rm res} = 16.55\, \text{km/h} v res = 16.55 km/h and θ r e s = 25 ° \theta_{\rm res} = 25\degree θ res = 25°. It also shows the absolute values of the x and y components of the resultant velocity vector. You can check your results using the formulas below:
They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising. Free math problem solver answers your algebra homework questions with step-by-step explanations.
Let's sum that up to form the most essential projectile motion equations: 1. Launching the object from the ground (initial height h = 0): Horizontal velocity component: V x = V 0 cos α. V_\mathrm x = V_0 \cos \alpha V x = V 0 cosα. Vertical velocity component: V y = V 0 sin α − g t.
The first plane is flying 25 km/h slower than the second plane. In two hours, the planes are 430 kilometres apart. Find the rate of each plane. On a 130-kilometre trip, a car travelled at an average speed of 55 km/h and then reduced its speed to 40 km/h for the remainder of the trip. The trip took a total of 2.5 hours.
You are on planet Earth which is spinning at 40,075 km per day (about 1675 km/h or 465 m/s), and moving around the Sun at about 100,000 km/h, which is itself moving through the Galaxy. Next time you are out walking, imagine you are still and it is the world that moves under your feet.
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Jul 29, 2024 · Sound moves through the air at a speed of around 343 meters per second, which is 1234.8 km/h or 767 mph (at 20 °C / 68 °F). It means that a sound wave in air needs about 2.9 seconds to travel one kilometer, or 4.7 seconds to travel a mile — this data might be useful for storm-hunters to determine the lighting distance. In 2012, Austrian ...
