- If a mass of 1 kg is accelerated 1 m/s2 by a force of 1 N, what would be the acceleration of 2 kg acted on by a force of 2 N ?
- How much acceleration does a 747 jumbo jet of mass 30.000 kg experience in take off when the thrust for each of four engines is 30.000 N ?
- If you stand next to a wall on a frictionless skateboard and push the wall with a force of 30 N, how hard does the wall push you ? If your mass is 60 kg, what’s your acceleration ?
- A firefighter of mass 50 kg slides down a vertical pole with an acceleration of 5 m/s2. What frictional force does pole exert on her ?
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