Title: FORCE & PRESSURE – NUMERICALS (Part : 3)
Question: 9
How much thrust will be required to exert a pressure of 20,000 pa on an area of 1 cm²?
Solution:
Given:
Pressure, P = 20000 Pa
Area, A = 1 cm²
Thrust (Force), F = ?
Convert area to m² :
1 cm² = 0.0001 m²
So,
A = 0.0001 m²
Formula:
Pressure = Force / Area
P=F/A
Rearrange Formula :
F=P×A
Substitution:
F = 20,000 × 0.0001
Convert decimal to fraction:
0.0001 =
So,
F = 20,000 × (,000)
F = 20,,000
F=2N
Final Answer:
Thrust = 2 N
Question: 9
How much thrust will be required to exert a pressure of 20,000 pa on an area of 1 cm²?
Solution:
Given:
Pressure, P = 20000 Pa
Area, A = 1 cm²
Thrust (Force), F = ?
Convert area to m² :
1 cm² = 0.0001 m²
So,
A = 0.0001 m²
Formula:
Pressure = Force / Area
P=F/A
Rearrange Formula :
F=P×A
Substitution:
F = 20,000 × 0.0001
Convert decimal to fraction:
0.0001 =
So,
F = 20,000 × (,000)
F = 20,,000
F=2N
Final Answer:
Thrust = 2 N
