## sparkles 3 years ago A T shirt launcher launches shirts at 15 m/s. If it takes 0.30 s to accelerate a 250 g shirt to launch speed, determine the force exerted on the shirt. You can assume no friction. I just need the final answer Please ! btw this is a physics question

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1. NotTim

so, let's draw a diagram first and then make a variables list. then, find whic hformula we need.

2. sparkles

ok

3. NotTim

are we doing the entire motion, or just when it initally leaves the cannon?

4. sparkles

|dw:1343190086331:dw|

5. sparkles

im actually not sure :S

6. NotTim

|dw:1343201268249:dw|

7. TuringTest

$F=ma=m\frac{\Delta v}{\Delta t}$

8. TuringTest

that's all you need, just be careful about the units

9. NotTim

sigh....turingtest beat me to the punch...

10. TuringTest

I like how you were thinking out the different factors in the question though. Props on that ;)

11. sparkles

so final answer would be 12.5 ?

12. maheshmeghwal9

12.5 newtons?????????????? I mean wt unit did u take?

13. sparkles

yea 12.5 N

14. sparkles

i did F=ma

15. maheshmeghwal9

yeah u r right then:D @sparkles

16. sparkles

F=(0.25)(50) = 12.5 N

17. sparkles

okay thanks :D

18. maheshmeghwal9

welcome:D