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4 years ago

14

Running longer would be an example of how you might improve your running performance

1 answer:

AURORKA [14]4 years ago

8 0

This is true, however if it wee better worded it would be obvious. This is simply stating that you have a higher endurance which would be a visual improvement in your running performance. Hope this helped <3

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A 500N person stands 2.5m from a wall against which a horizontal beam is attached. The beam is 6m long and weighs 200N. A cable

Vinil7 [7]

PART A)

Here by force balance along Y direction

$Tsin45 + F_y = 500 + 200$

Force balance along X direction

$Tcos45 = F_x$

now by torque balance

$Tsin45 (6) = 500 (2.5) + 200 (3)$

$T(4.24) = 1250 + 600$

$T = 436.3 N$

PART B)

now from above equations

$Tsin45 + F_y = 700$

$F_y = 391.5 N$

$F_x = Tcos45 = 308.5 N$

now net reaction force of wall is given as

$F = \sqrt{F_x^2 + F_y^2}$

$F = 498.4 N$

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3 years ago

german

Answer:

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3 years ago

The length of a force vector represents the

avanturin [10]

Answer:

The length of the segment AB represents the magnitude of the force.

so its Magnitude of the force

Explanation:

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3 years ago

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Anettt [7]

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2 years ago

Read 2 more answers

A 4.0-mm-diameter hole is 1.0 m below the surface of a 2.0-m-diameter tank of water. What is the rate, in mm/min, at which the w

kykrilka [37]

Answer:

$1.06$ mm/min

Explanation:

h = height of the water level above the hole = 1 m

$d_{h}$ = diameter of hole = 4 mm = 0.004 m

$A_{h}$ = Area of cross-section of hole = $(0.25) \pi d_{h}^{2}$

$d_{t}$ = diameter of tank = 2 m

$A_{t}$ = Area of cross-section of tank = $(0.25) \pi d_{t}^{2}$

R = rate at which the water level drop

Rate at which the water level drop is given as

$R = \frac{A_{h} (\sqrt{2gh}))}{A_{t}}$

$R = \frac{((0.25) \pi d_{h}^{2}) (\sqrt{2gh}))}{((0.25) \pi d_{t}^{2})}$

$R = \frac{(d_{h}^{2}) (\sqrt{2gh}))}{(d_{t}^{2})}$

$R = \frac{(0.004)^{2} \sqrt{2(9.8)(1)}}{(2)^{2}}$

$R = 17.7\times 10^{-6}$ m/s

$R = 0.0177$ mm/sec

$R = (0.0177) (60)$ mm/min

$R = 1.06$ mm/min

8 0

4 years ago