Related questions with answers
An interstellar spacecraft, far from the influence of any stars
or planets, is moving at high speed under the influence of fu-
sion rockets when the engines malfunction and stop. The
spacecraft will
immediately stop, throwing all of the occupants to the
front of the craft.
begin slowing down, eventually coming to a rest in the
cold emptiness of space.
keep moving at constant speed for a while, but then be-
gin to slow down.
keep moving forever at the same speed.
Solution
VerifiedNewton's first law states that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force. In this case, the interstellar spacecraft is moving at a constant speed under the influence of fusion rockets until the engines malfunction and stop. However, the interstellar spacecraft will keep moving at a constant speed due to absence of external force.
(D) The spacecraft will keep moving forever at the same speed.
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