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-   -   Free help with physical science? (https://www.askmehelpdesk.com/showthread.php?t=594993)

  • Aug 29, 2011, 01:25 PM
    cstovall
    Free help with physical science?
    A car travels on a straight,level road.(a) starting from rest,the car is going 44ft/s at the end of 5.0 s.what is the car's average acceleration in ft/s2? (b) in 4.0 seconds, the car is going 88ft/s.what is the car's average acceleration for this time? (c)the car then slows to 66ft/s in 3.0 s. What is the average acceleration for this time? (d) what is the overall average acceleration for the total time?
  • Aug 30, 2011, 10:11 AM
    Unknown008
    (a) Use your definition of acceleration. Can you state it?

    (b) Use your definition of acceleration again.

    (c) Same as (b)

    (d) Same as (b)
  • May 4, 2012, 09:04 AM
    bus118
    Find the net force produced by a 30-N force and a 20-N force in each of the following cases:

    (a) Both forces act in the same direction.
    (b) The two act in opposite directions
  • May 4, 2012, 09:05 AM
    bus118
    Find the net force produced by a 30-N force and a 20-N force in each of the following cases:
    (a) Both forces act in the same direction.
    (b) The two act in opposite directions.

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