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Q. While rummaging in her backpack for her cell phone, Sally's Mini-Cooper rear ends Joey's Suburban. Sally's car is totaled while the suburban is fine. If Sally's car hit the suburban with 30 N of force, how much force did Joey's car exert on Sally's? (a) more than 30 N, (b) less than 30 N, (c) exactly 30 N.
Ans.
Exactly 30 N, Newton's 3rd Law
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ACCELERATION: The time rate of change of velocity of a body is known as acceleration.
Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.
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