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It is known that,
Mass of the rocket,m= 20,000 kg
Initial acceleration,a=5ms^-2
Acceleration due to gravity,g =10ms^-2
By using Newton’s second law of motion,
The net force (thrust) acting on the rocket can be written as:
F-mg=ma
F= m( g+a)
F= 20000(10+5) = 20000 X 5
F= 3 X 10^5 N
Therefore, the initial thrust(force) of the blast
is 3 X 10^5 N.
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