Resulting velocity

1. The problem statement, all variables and given/known data
On Earth, an astronaut and equipment weight 1,960.0 N. While weightless inspace, the astronaut fires a 100 N rocket backpack for 2.0 s. What is the resulting velocity of the astronauts and equipment?

2. Relevant equations


3. The attempt at a solution
t=2.0 s

i am super lost...
idk which equation to use :S
i only know of
v=d/t :S
please help... i would truly appreciate it....


Homework Helper
You know the weight, so figure the mass.

You know the force, so figure the acceleration. F = M*a after all.

You know the acceleration, you know the time ... you know the answer.

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving