Question

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Answer 1

• Answer 1

c) Less

because as some pencil placed under it, we have to apply very less amount of force to full it.

• Answer 2

b) Force applied

Spring balance is a device used for measuring the force acting on an object.

• Answer 3

a) Rolling friction is less than sliding friction

When we roll something, it is easy to pull and we have to apply less force. You can even take the example of tyres for understanding this.