A10,000-kg rocket blasts off from earth with a uniform upward acceleration of 2.00 m/s2 and feels no air resistance. the upward thrust force its engines must provide during this acceleration is closest toa 10,000-kg rocket blasts off from earth with a uniform upward acceleration of 2.00 m/s2 and feels no air resistance. the upward thrust force its engines must provide during this acceleration is closest to:
a. 118,000 n.
b. 78,000 n.
c. 980,000 n.
d. 20,000 n.

A.

Explanation:

To solve this exercise we use the concept given in Newton's second Law in which it is specified that

Where,

F = Force

m = mass

a = Acceleration

In the given problem the rocket blast off from earth with a uniform upward acceleration of

Taking into account that on earth the force of gravity also acts, which has a value of , we have to

Therefore the correct answer is A.

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

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