Question 153: Laws of Motion

Question

A rocket with a lift-off mass $$3.5 	imes {10^4}\,\,kg$$ is blasted upwards with an initial acceleration of $$10m/{s^2}.$$ Then the initial thrust of the blast is

Accepted Answer

Here, thrust force is responsible to accelerate the rocket,
So initial thrust of the blast
= (Lift-off mass) ÃÂ acceleration
= (3.5 ÃÂ 10
4
) ÃÂ (10)
= 3.5 ÃÂ 10
5
N

Answer

$$3.5 	imes {10^5}N$$

Answer

$$7.0 	imes {10^5}N$$

Answer

$$14.0 	imes {10^5}N$$

Answer

$$1.75 	imes {10^5}N$$

Laws of Motion

A rocket with a lift-off mass $3.5 \times {10^4}\,\,kg is blasted upwards with an initial acceleration of 10m/{s^2}.$ Then the initial thrust of the blast is

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