Question

what is the work done by stone of mass 250 g when thrown up through a height of 2.5 m

Answer 1

m=250g=0.25kg

g=10m/s

h=2.5

w=0.25 x 10 x 2.5

 =6.25 j

Answer 2

Explanation:

Pressure is scalar quantity which is defined as force per unit area where the force acts in a direction perpendicular to the surface.