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3 years ago

9

cecily is inflating her bicyble tyre with the pump below. when she pushes the plunger down, it is moving against a force applief

d by the air inside the cynlinder. this means that the plunger is doing ___

1 answer:

Natali5045456 [20]3 years ago

3 0

Answer:

"work against the force of the air in the tire"

The air in the tire provides a force opposing the force of the air provided by the plunger.

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For this case we first think that the skateboard and the child are one body.
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