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# Physics question? (suvat) UKCAT

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1. Explain to me how is accelerating from rest to 60mph in 6s is equivalent to moving at 30mph for 6s????

The QR on the UKCAT mock 1 is unbelievably hard!!
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3. (Original post by bobwibbles)
Explain to me how is accelerating from rest to 60mph in 6s is equivalent to moving at 30mph for 6s????

The QR on the UKCAT mock 1 is unbelievably hard!!
If you draw a graph of speed versus time for accelerating from rest to 60mph in 6s, you would get a straight line pass through the origin to 60 mph. The area under this graph is the distance travelled by the object in 6 s.

It is found by calculating the area of a triangle:

Before computing the whole thing do a bit of simplification,

Actually, 30 mph is the average speed for the journey of accelerating from rest to 60mph in 6s.
4. (Original post by Eimmanuel)
If you draw a graph of speed versus time for accelerating from rest to 60mph in 6s, you would get a straight line pass through the origin to 60 mph. The area under this graph is the distance travelled by the object in 6 s.

It is found by calculating the area of a triangle:

Before computing the whole thing do a bit of simplification,

Actually, 30 mph is the average speed for the journey of accelerating from rest to 60mph in 6s.
Ah makes sense. Thank you!

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