A 6000 kg rocket is set for firing. If the exhaust speed is 1000 m / s, how much gas must be ejected each second to supply the thrust needed to overcome the weight of the rocket?

Question

A 6000 kg rocket is set for firing. If the exhaust speed is 1000 m / s, how much gas must be ejected each second to supply the thrust needed to overcome the weight of the rocket? (A) 30 kg (B) 40 kg (C) 50 kg (D) 60 kg

Tardigrade Admin · Accepted Answer

F=v (d m/d t)=m g 1000((d m/d t))=60000 (d m/d t)=60 kg

Q. A $6000 k g$ rocket is set for firing. If the exhaust speed is $1000 m / s$ , how much gas must be ejected each second to supply the thrust needed to overcome the weight of the rocket?

30 kg

40 kg

50 kg

60 kg

$F = v \frac{d m}{d t} = m g$
$1000 (\frac{d m}{d t}) = 60000$
$\frac{d m}{d t} = 60 k g$

Q. A 6000kg rocket is set for firing. If the exhaust speed is 1000m/s, how much gas must be ejected each second to supply the thrust needed to overcome the weight of the rocket?