Question

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Answer 1

Answer:

udk

Explanation:

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Answer 2

Answer:

6. The watt (symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second and is used to quantify the rate of energy transfer. In SI base units, the watt is described as kg⋅m2⋅s−3. The watt is named after James Watt, an 18th-century Scottish inventor.

7.Yes, I agree with Soni that the acceleration in an object could be zero even when several forces are acting on it.

Let equal and opposite forces (F) act on an object, they cancel out each other so that the net external force experienced by the object is zero which makes the object to move with zero acceleration.

F external =ma

∴ F external =0 ⟹a=0

∴ vf =vi

Thus an object will kept on moving with a constant velocity v if it was also moving initially.