Calculate the pressure produced by applying 30N force on a floor measuring 2m wide and 5m long. 1. 5Pa
2. 10Pa
3. 3Pa
4. 8Pa.

with written explanation
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3. 3Pa

Explanation:

Force(F)= 30N

Length (L) =5m

Width (W)=2 m

Pressure (P) =F/A

But A= L×W

Therefore, P= F/L×W

P= 30/5×2

P=30/10

P=3Pa.

a person with a mass of 106kg has a weight of 1060n

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.