A car traveling at 32.0 km/h speeds up to 40.0 km/h in a time of 5.00 s. The same car later speeds up from 62.0 km/h to 70.0 km/h in a time of 5.00 s. Let the +x direction point in the direction the car is traveling. Calculate the magnitude a, of the constant acceleration for the first time interval. Determine the distance d₁ traveled by the car during the first time interval. Calculate the magnitude a2 of the constant acceleration for the second time interval. Determine the distance de traveled by the car during the second time interval. a₁ = d₁= a₂=== d₂ = m/s2 m m/s² E

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Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.