Homework Help: Physics, science,

Posted by Bri on Friday, October 12, 2012 at 4:14pm.

I'm desperate
Please help

2. A bird, starting from rest, accelerates at 3 m/s2 north for 5 seconds. It then sees the rest of its flock and turns due east accelerating from its previous speed to 20 m/s in 2 seconds.

A. What is the velocity of the bird after the initial leg (due north)?

B. How far does it fly during this first leg?

Physics, science, - Steve, Friday, October 12, 2012 at 4:20pm
surely you know your basic formulas:

s = 1/2 at^2
v = at

2A.
v = 3*5 = 15m/s

2B.
s = 1/2 * 3 * 25 = 37.5m

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