SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Without a force to stop or slow a coasting object, the object will coast forever in a ____ line.
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blue
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red
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straight
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vertical
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Explanation:
Detailed explanation-1: -The reason most things in our lives do NOT keep moving forever is because there almost always is an “outside force”-friction. When friction is reduced to insignificance, inertia becomes much more obvious. For example: a hockey puck sliding on an ice rink, or the puck on an air hockey table.
Detailed explanation-2: -Inertia is the tendency of all objects to resist any change in motion. Inertia causes a moving object to stay in motion at the same velocity (speed and direction) unless a force acts on it to change its speed or direction. It also causes an object at rest to stay at rest.
There is 1 question to complete.