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# Mechanics question Watch

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1. Why am I getting the acceleration as 2? Someone help I don't understand I did (a=v-u/t) which was 2
2. You mean for question 5? I got 0.1389 and 0.0694
3. which part did you get 2ms-2 on?
4. (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?
5. 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
7. (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
8. rearrange v² = u² + 2as to a = (v²-u²)/2s = (0 - 8.33²)/2x500 = 0.0694ms-2
9. (Original post by CheeseIsVeg)
the garage is closed on Sundays **
10. (Original post by the bear)
the garage is closed on Sundays **

Not even a garage sale?

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