Question

question 3
during a rocket launch, the engines produce ↑6000 n while gravity pulls ↓2000 n. if the rockets mass is 500 kg, what is its acceleration?
12 m/s² ↑
8 m/s² ↑
10 m/s² ↑
6 m/s² ↑

Explanation:

Step1: Calculate net force

Net force $F_{net}=F_{engine}-F_{gravity}=6000 - 2000=4000$ N

Step2: Use Newton's second - law

According to $F = ma$, where $F = F_{net}$, $m = 500$ kg. Then $a=\frac{F_{net}}{m}=\frac{4000}{500}=8$ m/s²

Answer:

$8$ m/s² $\uparrow$