Question

rocket has a mass of 0.8 kg and an engine that provides 100 N of force. A second rocket is being designed to use the same engine but accelerate at half the rate of the first rocket. What is the mass of the second rocket?



(1 point)
Responses

0.4 kg
0.4 kg

1.6 kg
1.6 kg

2.4 kg
2.4 kg

0.8 kg

Answer 1

Use F = ma. First rocket's a = 100 N / 0.8 kg = 125 m/s^2. Half that is 62.5 m/s^2. So m = F / a = 100 / 62.5 = 1.6 kg.

Answer: 1.6 kg.