Question

1] What is moment of force, if force of 10N applied on an object at a distance of .2 m from

a pivoted point.


2] A force of 500N is acting normally on an area of 100cm2 .Calculate the pressure exerted in pascal.


3] How much thrust will be required to exert a pressure of 50,000 pa on an area of .5m ×100m?


Please Answer Fast !​

Answer 1

Answer:

✭ Question No 1 ✭

• What is moment of force, if force of 10 N applied on an object at a distance of 0.2 m from a pivoted point.

Given :-

• A force of 10 N applied on an object at a distance of 0.2 m from a pivoted point.

To Find :-

• What is the moment of force.

Formula Used :-

$\bigstar$ Moment Of Force Formula :

$\mapsto \sf\boxed{\bold{\pink{\tau =\: F \times r}}}$

where,

• $\sf \tau$ = Moment Of Force
• F = Force
• r = Distance

Solution :-

Given :

• Force = 10 N
• Distance = 0.2 m

According to the question by using the formula we get,

$\leadsto \sf \tau =\: 10 \times 0.2$

$\leadsto \sf\bold{\red{\tau =\: 2\: Nm}}$

$\therefore$ The moment of force is 2 Nm .

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✭ Question No 2 ✭

• A force of 500 N is acting normally on an area of 100 cm². Calculate the pressure exerted in pascal.

Given :-

• A force of 500 N is acting normally on an area of 100 cm².

To Find :-

• What is the pressure exerted in pascal.

Formula Used :-

$\bigstar$ Pressure Formula :

$\mapsto \sf\boxed{\bold{\pink{Pressure =\: \dfrac{Force}{Area}}}}$

Solution :-

Given :

• Force = 500 N
• Area = 100 cm²

According to the question by using the formula we get,

$\leadsto \sf Pressure =\: \dfrac{5\cancel{00}}{1\cancel{00}}$

$\leadsto \sf\bold{\red{Pressure =\: 5\: Pascal}}$

$\therefore$ The pressure exerted in pascal is 5 Pascal.

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✭ Question No 3 ✭

• How much thrust will be required to exert a pressure of 50000 pa on an area of 0.5 m × 100 m ?

Given :-

• A pressure of 50000 pa on an area of 0.5 m × 100 m.

To Find :-

• What is the thrust will be required.

Formula Used :-

$\bigstar$ Thrust or Force Formula :

$\mapsto \sf\boxed{\bold{\pink{Thrust =\: Pressure \times Area}}}$

Solution :-

First, we have to find the area :

$\implies \sf Area =\: 0.5\: m \times 100\: m$

$\implies \sf\bold{\purple{Area =\: 50\: m^2}}$

Now, we have to find the thrust :

Given :

• Pressure = 50000 Pa
• Area = 50 m²

According to the question by using the formula we get,

$\leadsto \sf Thrust =\: 50000 \times 50$

$\leadsto \sf\bold{\red{Thrust =\: 2500000\: N}}$

$\therefore$ The thrust will be required is 2500000 N .