Question

A rocket near the surface of the earth is accelerating vertically upward at 10 m/s2. The rocket releases an instrument package. Immediately after release the acceleration of the instrument package is:a)20 m/s2 up
b)10 m/s2 up
c) 0
d)10 m/s2 down
e) 20 m/s2 down

Answer 1

Answer:

d) 10 $ms^{-2}$ down

Explanation:

The instrument package is acting vertically downwards while the rocket is accelerating vertically upwards.

According to Newton's third law of motion, "for every action, there is an equal and opposite reaction". As the Rocket acts upwards, there is an equal and opposite force acting on it to push it downwards and as such, this force (which is equal in magnitude) is responsible for the instrument package's acceleration immediately it is released from the rocket.

Answer 2

Answer:

b)10 m/s^2 up

Explanation:

Immediately after The release from the rocket the acceleration of the instrument package will be same as of the rocket that is 10m/s^2 upward.

This because of newtons law of inertia. The states that a body in state of rest and state of motion will remain in state of rest or motion until and unless any external force is applied on it. Immediately after being released from the rocket inertia will keep the acceleration same. The effect of gravity come gradually.