Question

define thrust and pressure (give their si unit.calculate the pressure exurted by a block of 45n if the surface area in contact is 0.5m^2

Answer 1

Force exerted by an object perpendicular to the surface is called thrust and the force exerted by any object per unit area is called pressure.

SI UNIT OF FORCE IS NEWTON (N) AND SI UNIT OF PRESSURE IS PASCAL (P) OR NEWTON PER SQUARE METRE i.e. N/m sq.

PRESSURE = FORCE / AREA

FORCE=100N

AREA=2.5m^2

P=100/2.5

Pressure =40 P

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