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Newton's Laws of Motion Practice Questions - Page 3

Questions 21–30 of 34 · Page 3 of 4

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Questions
34
Solutions
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Q21Which scenario shows zero net force?MediumSolve →Q22A body moving in a circle at constant speed has:MediumSolve →Q23Consider these: Dry ice sublimates without force.A ball at rest remains at rest. Which law explains both?MediumSolve →Q24A bullet fired into wood stops quickly but in hay it travels farther. Why?MediumSolve →Q25If the momentum of a body is doubled, its kinetic energy will be:MediumSolve →Q26A car moving at 20 m/s stops in 4 seconds. The average retarding force if the mass is 1000 kg is:MediumSolve →Q27A man fires a 10 g bullet at 400 m/s from a 5 kg gun. The recoil speed of the gun is:MediumSolve →Q28Newton’s laws hold true in:MediumSolve →Q29Statement: Airbags reduce injuries during collisions because they:MediumSolve →Q30A rocket works on the principle of:MediumSolve →
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