2. A satellite can generate a maximum force of 550 N using its rockets. The satellite needs to increase its momentum (impulse) by 10,200 kg m/s in
order to reach a desired orbital altitude above the Earth. How long must
the satellite's rockets fire in order to reach the desired altitude?

The satellite's rockets fire in 18.54 s

Given

F- Force = 550 N

I - impulse = 10,200 kg m/s

Required

Fire time

Solution

Impulse is defined is the product of the force with the time interval when the force is acting on the object.  

Can be formulated :

I = F. Δt  

Δt  = I : F

Input the value :

the answer is   c.) 1575 j.

explanation: