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LenaWriter [7]
2 years ago
8

Calculate the pressure in pascals if a 5N force is applied to an area of 0.2m²​

Physics
2 answers:
Schach [20]2 years ago
8 0

Answer:

25 is the answer

Explanation:

Pressure= force/area

So, P \frac{5}{0.2} =25

kari74 [83]2 years ago
3 0

Answer:

25 pascals

Explanation:

Given,

Force ( F ) = 5 N

Area ( a ) = 0.2 m²

To find : Pressure ( P ) = ?

Formula : -

P = F / a

P = 5 / 0.2

= 50 / 2

P = 25 pascals

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Two friends, Al and Jo, have a combined mass of 195 kg. At the ice skating rink, they stand close together on skates, at rest an
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m_{total} = m_{Al} + m_{Jo} = 195 \ kg.

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m_{Al} \ v_{Al_f} + (195 \ kg - m_{Al}) \ v_{Jo_f} = 0

m_{Al} \  v_{Al_f} - m_{Al} \  v_{Jo_f}= - 195 \ kg \  v_{Jo_f}

m_{Al} \ (v_{Al_f} - v_{Jo_f})= - 195 \ kg \ v_{Jo_f}

m_{Al} = \frac{ - 195 \ kg \ v_{Jo_f} } {  v_{Al_f} - v_{Jo_f} }

m_{Al} = \frac{195 \ kg  \ v_{Jo_f} } {    v_{Jo_f} - v_{Al_f} }

Now, we can use the values:

v_{Al_f}= 10.2 \frac{m}{s}

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m_{Al} = \frac{195 \ kg  ( - 11.4 \frac{m}{s} ) } {   (- 11.4 \frac{m}{s}) - 10.2 \frac{m}{s} }

m_{Al} = 102.92 \ kg

and this is the Al's mass.

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