Question

mihir and varun have surface areas of their palms as 15 × 10 ^- 4 m square and 25 × 10 ^-4 m square respectively how much thrust they need to apply so that pressure on their palms is 30000 pascal

Answer 1

surface area of mihir palm = 15 × 10 ^-4 m2
surface area of varun palm = 25 × 10 ^-4 m2

for mihir:
since pressure = force / area
=> 30000 pa= force / 15 × 10^-4 m2
=> force = 30000 pa × 15 × 10 ^ -4 m2
therefore force = 45 N

hence a force of 45 N is required to make a pressure of 30000 pascal on mihir's palm

for varun:

since pressure = force / area
=> 30000 pa= force / 25 × 10^-4 m2
=> force = 30000 pa × 25 × 10 ^ -4 m2
therefore force = 75 N

hence a force of 75 N is required to make a pressure of 30000 pascal on varun's palm

Answer 2

Answer:

mihir=45N

varun=75N

Explanation:

surface area of mihir palm =15×10^-4 m^2

surface area of vain palm =25×10^-4 m^2

for mihir :

=>since pressure = force/area

=30000 pa =force/15×10^-4 m^2

=force =30000 pa ×15×10^-4 m^2

therefore force =45N

for varun :

=>since pressure =force/area

=30000 pa =force/25×10^-4 m^2

=force=30000 pa ×25×10^-4 m^2

therefore force =75N