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    Hi, please help me out with this question..


    A lift ascends from rest with an acceleration of 0.5m/s/s before slowing with an acceleration of -0.75m/s/s for the next stop. If the total journey time is 10 seconds, what is the distance between the two stops?

    Clare is driving along a road in her car, with Henry following 40m behind his car. They are both travelling at 25m/s. Clare spots a problem ahead, and brakes to a halt, with acceleration -5m/s/s. Henry takes 0.2 seconds to react, then brakes, but his brakes are less well maintained and only provide an acceleration of -4m/s/s. Investigate what happens.

    I'm really weak at these types of combine kinematics. If you have any tips on solving these kind of problems better please let me know too
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    (Original post by liemluji)
    Hi, please help me out with this question..


    A lift ascends from rest with an acceleration of 0.5m/s/s before slowing with an acceleration of -0.75m/s/s for the next stop. If the total journey time is 10 seconds, what is the distance between the two stops?

    Clare is driving along a road in her car, with Henry following 40m behind his car. They are both travelling at 25m/s. Clare spots a problem ahead, and brakes to a halt, with acceleration -5m/s/s. Henry takes 0.2 seconds to react, then brakes, but his brakes are less well maintained and only provide an acceleration of -4m/s/s. Investigate what happens.

    I'm really weak at these types of combine kinematics. If you have any tips on solving these kind of problems better please let me know too
    For your first one, split it up into two distinct stages and don't be afraid to get some unknown parameters going that you can then find/solve.
 
 
 
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