Question

rocket rocket with a lift off mass 20000 kg is blasted upward with an initial acceleration of 5.0 metre per second square calculate the initial thrust of blast

Answer 1

F - mg = ma
F = ma + mg
F = (a+g)m
F = (5+10)20000
F = (15)20000
F = 300000
F = 3 × 10^5 N

Answer 2

Here's Ur answer..
Hope it helps...