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    1) A car accelerates at 2ms^-2 from rest for 10 seconds along a straight road.
    a) Find the distance travelled by the car and the speed it reaches.
    b)After the 10 seconds it’s acceleration changes to 0.5ms^-2 and then remains constant for a further 5 seconds. Find the speed of the car and the total distance that it has travelled at the end of the 15 seconds.

    So, for part a) - i got s= 100m & v=20ms-1, which is correct according to the back of text book.
    For part b) i got v=22.5ms^-1 & s=106.25m
    V=22.5ms^-1 is right according to the answers but apparently s=206.25m- so i’m off by exactly 100 & i don’t understand where i went wrong
    so could someone please explain it to me
    thankyou.
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    (Original post by navpahal)
    So, for part a) - i got s= 100m & v=20ms-1, which is correct according to the back of text book.
    For part b) i got v=22.5ms^-1 & s=106.25m
    V=22.5ms^-1 is right according to the answers but apparently s=206.25m- so i’m off by exactly 100 & i don’t understand where i went wrong
    so could someone please explain it to me
    thankyou.
    Did you not add the 100 from part (a) ??
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    (Original post by RDKGames)
    Did you not add the 100 from part (a) ??

    lmao thankyou i missed out such a simple step i was so confused
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    thankyouuuu !!!
 
 
 
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