A rocket of mass 1000 kg is exhaust gases a rate of 4 kg-s with a velocity 3000 m-s- The thrust developed on the rocket is12000 N800 N200 N120 N

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Toppr Admin · Accepted Answer

M-1000-xA0-kg-x394-m-x394-t-4-xA0-kg-s-v-3000-xA0-m-sThrust on the rocketF-x2212-v-x394-M-x394-t-x2212-3000-xD7-4-x2212-12000-xA0-N-Negative sign indicates that thrust applied in a direction opposite to the direction of escaping gas-

A rocket of mass $1000 k g$ is exhaust gases at a rate of $4 k g / s$ with a velocity $3000 m / s$ . The thrust developed on the rocket is
$12000 N$
$800 N$
$200 N$
$120 N$

$m = 1000 k g$

$\frac{Δ m}{Δ t} = 4 k g / s, v = 3000 m / s$

Thrust on the rocket

$F = - v \frac{Δ M}{Δ t}$

$= - 3000 \times 4$

$= - 12000 N$

(Negative sign indicates that thrust applied in a direction opposite to the direction of escaping gas)

A rocket of mass 1000 kg is exhaust gases at a rate of 4 kg/s with a velocity 3000 m/s. The thrust developed on the rocket is12000 N800 N200 N120 N

m=1000 kgΔmΔt=4 kg/s,v=3000 m/sThrust on the rocketF=−vΔMΔt=−3000×4=−12000 N(Negative sign indicates that thrust applied in a direction opposite to the direction of escaping gas)

A rocket of mass $1000 k g$ is exhaust gases at a rate of $4 k g / s$ with a velocity $3000 m / s$ . The thrust developed on the rocket is
$12000 N$
$800 N$
$200 N$
$120 N$

$m = 1000 k g$

$\frac{Δ m}{Δ t} = 4 k g / s, v = 3000 m / s$

Thrust on the rocket

$F = - v \frac{Δ M}{Δ t}$

$= - 3000 \times 4$

$= - 12000 N$

(Negative sign indicates that thrust applied in a direction opposite to the direction of escaping gas)