Thurst exerted by an object of area20m² experiencing pressure 150 Nm‐² is

3000 N

Explanation:

as we know that

pressure=force/area

so force=thurst

pressure=thurst/area

thyrst=pressure*area

pressure=150 Nm^-2

area=20m^2

so thurst=150*20=3000 N or 3*10^3 N

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

conservation of mass

mass before something happens = mass afterwards