- #1
WonkySlinky
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A truck covers 40.0 m in 8.50 s while smoothly slowing down to a final velocity of 2.80 m/s
a. Find the truck's original speed.
b. Find its acceleration
a) I'm using x=1/2(vo+v)t to find the original velocity but I keep getting vo=12.21m/s (the books answer is 6.61m/s)
b) For the second part to find acceleration I'm using v=vo+at which gives me a=-1.1m/s^2 (the books answer is -0.448m/s^2)
I don't know what I'm doing wrong
a. Find the truck's original speed.
b. Find its acceleration
a) I'm using x=1/2(vo+v)t to find the original velocity but I keep getting vo=12.21m/s (the books answer is 6.61m/s)
b) For the second part to find acceleration I'm using v=vo+at which gives me a=-1.1m/s^2 (the books answer is -0.448m/s^2)
I don't know what I'm doing wrong