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2 years ago

1. Rocky lifted a 300 newton rock 2 meters off the ground and carried it 2 -

Physics

1 answer:

sergij07 [2.7K]2 years ago

4 0

Answer: 1200 joules

Explanation:

Work is done when force is applied on an object over a distance. It is measured in joules.

Thus, Work = Force X Distance

Since Force = 300 newton

Total distance = (distance off the ground + distance travelled on the ground)

i.e 2 meters off + 2 more meters = 4metres

Work = Force X Distance

= 300 Newton X 4 metres

= 1200 joules

Thus, Rocky did 1200 joules of work on the

rock

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The self inductance of the solenoid is given by :

$L=\dfrac{N\phi}{I}$ .........(2)

From equation (1) and (2) we get :

$\dfrac{\epsilon}{(di/dt)}=\dfrac{N\phi}{I}$

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$N=\dfrac{\epsilon I}{\phi (dI/dt)}$

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