A dragster travels 1/4 mi in 6.7 s. Assuming that acceleration is constant and the dragster is initially at rest, what is its velocity when it crosses the finish line?

Please show step by step...

Question

A dragster travels 1/4 mi in 6.7 s. Assuming that acceleration is constant and the dragster is initially at rest, what is its velocity when it crosses the finish line?

Please show step by step...

campbell_st · Answer

so use

$$average ..speed = \frac{distance..travelled}{time..taken}$$

anonymous · Answer

I tried but my answer was wrong.) I got 267 mi/h??

campbell_st · Answer

did you try feet/sec..?

campbell_st · Answer

and I think your answer is incorrect for the right formula

campbell_st · Answer

1/4 mile = 5280/4 = 1320 ft

avg speed 1320/6.7 = ...

campbell_st · Answer

even using 

0.25/6.7     will give miles/sec

then multiply by 60 to get miles/min

then multiply by 60 to get miles/hr

anonymous · Answer

the answer is given it's 269 mi/h ???

campbell_st · Answer

wow...