Homework Help: physics

Posted by Claudia on Tuesday, November 1, 2011 at 11:15am.

A 1000kg rocket is moving forward at 10m/s in space. A 10,000N force is applied to the rocket for one second from behind. How fast is the rocket now traveling?

a. 0m/s
b. 10m/s
c. 15m/s
d. 20m/s

physics - Henry, Wednesday, November 2, 2011 at 9:47pm
F = ma,
a = F / m = 10000 / 1000 = 10m/s^2,

V = Vo + at,
V = 10 + 10*1 = 20m/s.

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