A rocket engine exerts a force of 500N on space probe (in outer space) for 5 second. The probe speeds up form rest to a speed of 21 mls. What is it's mass?
Home
/
A rocket engine exerts a force of 500N on space probe (in outer space) for 5 second. The probe speeds up
Verified answer
Answer:
m = 119kg
Explanation:
Since it has a force and a time then we can get the Impulse of it.
I = Ft
= 500N x 5s
I = 2500 Ns
I = mv
2500Ns = m x 21m/s
m = 2500Ns ÷ 21m/s
= 119Ns^2/m
m = 119kg
Answer:
50.96 m=w/g g=9.81m/s^2