Question

A rocket with a lift off mass 20000kg is blasted upwards with a net acceleration of 5m/s2. Calculate the initial thrust of the blast.​

Answer 1

$</p><p>\huge{\mathfrak{\underline{\underline{\pink{Answer:-}}}}}$

$\color{green}{Given\:That:}$

• A rocket with a lift off mass 20000 kg .

• The net acceleration is 5m/s2

$\color{green}{To\:Find:}$

• The initial thrust ( Force) of the blast.

Solution :-

⇒Mass of the rocket, m = 20,000 kg

Initial acceleration, a = 5 m/s2.

Acceleration due to gravity, g = 10 m/s2.

⇒Using Newton’s second law of motion, the net force (thrust) acting on the rocket is given by the relation:-

F – mg = ma

F = m (g + a)

⇒ 20000 × (10 + 5)

⇒ 20000 × 15 = 3 × 105 N