Physics, 26.11.2019 17:31 Riplilpeep

Ajet transport has a weight of 1.87 x 106 n and is at rest on the runway. the two rear wheels are 16.0 m behind the front wheel, and the plane's center of gravity is 12.0 m behind the front wheel. determine the normal force exerted by the ground on (a) the front wheel and on (b) each of the two rear wheels.

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Answer from: mistydsargentp5wrh4

(a). The normal force exerted by the ground on the front wheel is $4.67\times10^{5}\ N$ .

(b). The normal force exerted by the ground on each of the two rear wheels is $7.02\times10^{5}\ N$

Explanation:

Given that,

Weight of jet $W=1.87\times10^{6}\ N$

Distance = 16 m

Second distance = 12.0 m

We need to calculate the normal force exerted by the ground on the front wheel

Using formula of torque

$\sum\tau=-Wl_{W}+F_{f}l_{f}=0$

Where, W = weight of jet

$l_{f}$ =lever arms for the forces $F_{f}$

$l_{w}$ =lever arms for the forces W

Put the value into the formula

$-(1.87\times10^{6})\times(16.0-12.0)+F_{f}\times16.0=0$

$F_{f}=\dfrac{(1.87\times10^{6})\times(16.0-12.0)}{16.0}$

$F_{f}=4.67\times10^{5}\ N$

(b). We need to calculate the normal force exerted by the ground on each of the two rear wheels

The sum of vertical forces equal to zero.

$\sum F_{y}=F_{f}+2F_{r}-W=0$

We using 2 for two rear wheels

$\sum F_{y}=0$

$F_{f}+2F_{r}-W=0$

$F_{r}=\dfrac{F_{f}-W}{2}$

Put the value into the formula

$F_{r}=\dfrac{-4.67\times10^{5}+1.87\times10^{6}}{2}$

$F_{r}=7.02\times10^{5}\ N$

Hence, (a). The normal force exerted by the ground on the front wheel is $4.67\times10^{5}\ N$ .

(b). The normal force exerted by the ground on each of the two rear wheels is $7.02\times10^{5}\ N$

Answer from: Quest

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

Answer from: Quest

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.

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Ajet transport has a weight of 1.87 x 106 n and is at rest on the runway. the two rear wheels are 16...

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