- #1
bjr_jyd15
- 74
- 0
Uniformly accelerated motion-- a weird kangaroo prob
Ok, I have this simple Question:
A kangaroo can jump straight up 2.5 m -- what is its takeoff speed?
How can I solve that given just one variable. Well, I know that Vi=0, right?
Also, if you anyone can help me try to solve this one?:
A car in an auto accident left skid marks 290 m long. Assuming an average acceleration of -3.9 m/s/s (that is, -0.4 g), calculate the Jag's speed when the brakes locked.
I know acceleration and scalar distance, but I don't know anything about the initial speed and such. So how can I choose a formula?
Please Help.
Thanks
Ok, I have this simple Question:
A kangaroo can jump straight up 2.5 m -- what is its takeoff speed?
How can I solve that given just one variable. Well, I know that Vi=0, right?
Also, if you anyone can help me try to solve this one?:
A car in an auto accident left skid marks 290 m long. Assuming an average acceleration of -3.9 m/s/s (that is, -0.4 g), calculate the Jag's speed when the brakes locked.
I know acceleration and scalar distance, but I don't know anything about the initial speed and such. So how can I choose a formula?
Please Help.
Thanks