Question detail
A car of mass 1000 kg accelerates from rest to a speed of 20 m/s. Calculate the momentum of the car at this speed Explain your answer using Momentum and force (HT only) and momentum.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Momentum
Question
A car of mass 1000 kg accelerates from rest to a speed of 20 m/s. Calculate the momentum of the car at this speed Explain your answer using Momentum and force (HT only) and momentum.
Answer
The momentum of the car is 20000 kg·m/s.
Explanation
A strong answer should address (HT only) Explain that force is related to the rate of change of momentum directly. Use the context of Momentum and force (HT only) within Momentum, then state the relevant forces or motion reasoning with units where needed. The answer is correct when it names the key physics quantity, keeps moment and force distinct, and links the conclusion back to the approved learning objective.
Common mistake
Confusing Force and Momentum
Students often confuse force with momentum, thinking they are the same concept.
Remember that force is related to the rate of change of momentum, while momentum is the product of mass and velocity. Focus on the definitions and relationships between these two quantities.
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