• Q:- The speed of a car is continuously increasing. Its acceleration is 7 meters/second2 it means its speed increases by 7 meters/second in every 1 second. Its intial speed is 10 meters/second. Will how long the car take to reach the speed of 255 meters/second. Share to Whatsapp



  • Given- acceleration = 7 meters/second2
    It means speed increase by 7 meters/second in every 1 second.
    The car intial speed is 10 meters/second and the final speed is 255 meters/second.
    It means the speed increases by (255-10)
    = 245 meters/second
    Speed increases by 7 meters/second in 1 second.
    So, speed increase by 1 meter/second in (1/7) second.
    So, speed increase by 245 meter/second in (1/7)x245 seconds.
    = 35 seconds

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