Recent content by wangwang2626

  1. W

    How to Calculate Speed When an Object Hits Another?

    How do you calculate the speed at which one objects hits another. I know the initial speed , the deceleration and the distance. Is there anything else I need to know. The car was traveling at 110km/h it decelerates at 6.5 m/s and hits a wall 25m away . so what formula do I use to calculate the...
  2. W

    How Long Will It Take for the Car to Collide with the Truck?

    the car was traveling at 110km/h when they noticed that the truck was not moving , it was 25 meters behind , I said it was decelerating at 6.5 m/s so how long would it take till it got to the truck and at what speed would it hit the truck. If the car does not reach the truck can you please...
  3. W

    How Long Will It Take for the Car to Collide with the Truck?

    Ok so the car is 25 m behind a truck which suddenly braked. I put it as decelerating at -6.5 m/s it was traveling at 110km/h . I would like to know how long it takes to collide with the truck , and if it dosent what would I have to change the deceleration to be so that it does collide with the...
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