3 years ago

Explain how do single fixed and single movable Pulley make our work easier

1 answer:

8 0

The force is in the same direction as the load moves. The force is up and the load moves up. This is the same results without the pulley. A fixed pulley makes work easier because you can pull down instead of pushing something up.

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Water is flowing through a channel that is 12m wide with a

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Answer:

Velocity from second channel will be 1.6875 m/sec

Explanation:

We have given width of the channel , that is diameter of the channel 1 $d_1$ = 12 m

So radius $r_1=\frac{d_1}{2}=\frac{12}{2}=6m$

Speed through the channel 1 $v_1=0.75m/sec$

Width , that is diameter of the channel 2 $d_2=4m$

So $r_2=2m$

From continuity equation

$A_1v_1=A_2v_2$

$\pi \times 12^2\times 0.75=4\times \pi\times 4^2\times v_2$

$v_2=1.6875m/sec$

So velocity from smaller channel will be 1.6875 m /sec

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i don't know.

Explanation:

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2 years ago

Explain how do single fixed and single movable Pulley make our work easier ​

Explain how do single fixed and single movable Pulley make our work easier