Question

VI. Numericals:
1. Calculate the pressure if a force of:
(a) 5 N is applied over an area of 1 m.​

Answer 1

Answer : 5 Pascal...............

Answer 2

ANSWER:

• Pressure = 5 pa

GIVEN:

• Force / Thrust =5N
• Contact Area = 1m^2

TO FIND:

• Pressure when force = 5N and area = 1m^2

SOLUTION:

Formula

$pressure = \frac{thrust}{contact \: area}$

Putting force = 5N and area = 1m^2 we get;

$pressure \: = \frac{5}{1} \\ pressure \: = 5$

So: pressure = 5 pa

NOTE:

some important formulas:

$(1) \: force = mass \times acceleration \\ (2) \: work \: done = force \: \times displacememt \\ (3) \: kinetic \: energy \: = \frac{1}{2} mv {}^{2} \\ (4) \: potential \: energy \: = \: mgh$

• where : m = mass. v= velocity. g = acceleration due to gravity.