Question

Question #81 5 steps to a 5 AP physics 1

Answer 1

Answer:

The net force acting on the rocket = 1.6 x 10⁸ N

Step-by-step explanation:

The rocket starts from rest

The initial speed, u = 0 m/s

Final speed, v = 9.6 km/s

v = 9.6 x 1000 m/s

v = 9.6 x 10³ m/s

The time taken, t = 8 min

t = 8 x 60

t = 480 s

The mass of the rocket, m = 8.0 x 10⁶ kg

The net force is calculated as shown below

`\begin{gathered} F=(m(v-u))/(t) \\ \\ F=((8.0*10^6)((9.6*10^3)-0))/(4.8*10^2) \\ \\ F=(8*9.6*10^9)/(4.8*10^2) \\ \\ F=16*10^7 \\ \\ F=1.6*10^8N \end{gathered}`

The net force acting on the rocket = 1.6 x 10⁸ N