## anonymous one year ago What impulse results if the force acting on an object is described by the force-time graph drawn inside? A. 0.50 kg * m/s B. 0.60 kg * m/s C. 1.3 kg * m/s D. 2.1 kg * m/s **Thank you!!

1. anonymous

|dw:1433008601364:dw|

2. anonymous

sorry it is so messy!1 i am not sure why it wasn't letting me use the lines!! so i had to hand draw it!

3. anonymous

|dw:1433008749309:dw|

4. anonymous

okay! i made it neater! y axis is "Force (N)" and x axis is "Time (s)" :D

5. Michele_Laino

the requested impulse, is given by the area enclosed by your graph, namely: |dw:1433008724532:dw|

6. anonymous

ohh okay! how can we calculate that? :D

7. Michele_Laino

so we have: $\Large I = F\Delta t = 0.7 \times 3 = ...$ since we can update your graph like below: |dw:1433008856173:dw|

8. anonymous

so 2.1? so our solution is choice D?

9. Michele_Laino

correct!

10. anonymous

yay! thank you:)

11. Michele_Laino

thank you!! :)