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Mechanics question

image.jpgWhy am I getting the acceleration as 2? Someone help I don't understand I did (a=v-u/t) which was 2
You mean for question 5? I got 0.1389 and 0.0694
which part did you get 2ms-2 on?
Original post by james813
You mean for question 5? I got 0.1389 and 0.0694

5 yeah, that was the acceleration that I tried to attempt- how'd you get your answers?
First convert 30kmh-1 to ms-1 (multiply by 1000 and divide by 3600) = 8.33
then a = (v - u)/t = (8.333-0)/60 = 0.1389 ms-1
@the bear I believe your services are required :colone:
Original post by james813
First convert 30kmh-1 to ms-1 (multiply by 1000 and divide by 3600) = 8.33
then a = (v - u)/t = (8.333-0)/60 = 0.1389 ms-1
ahh thank you so much, how about the final acceleration
rearrange v² = u² + 2as to a = (v²-u²)/2s = (0 - 8.33²)/2x500 = 0.0694ms-2
Original post by CheeseIsVeg
@the bear I believe your services are required :colone:


the garage is closed on Sundays :colonhash:**
Original post by the bear
the garage is closed on Sundays :colonhash:**


:toofunny:
Not even a garage sale? :puppyeyes: :tongue:

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