Question

a rocket with a lift-off mass 20000 kg is blasted upwards with an initial acceleration of 5.0 m/s^2. calculate initial thrust of blast​

Answer 1

$\underline{\underline{\mathfrak{\Large{Solution : }}}} \\ \\ \sf\: Initial \:mass\: of\: rocket \:m = 20000\: kg \\ \\ \sf \: Let \:initial\: thrust \:of\: blast\: be\: T \\ \\ \sf\: T - mg = ma \\ \\ \sf\:T = mg + ma \\ \\ \sf\: = m (g + a) \\ \\ \sf\: = 20000 × (9.8 + 5.0) \\ \\ \sf\: = 2 × 10^{4} × 14.8 N \\ \\ \sf\: = 29.6 × 10^{4} N \\ \\ \sf\: = 2.96 × 10^{5} N$

Answer 2

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