1 tractors have broad tires give reason 2 a thrust of 200newton exerts a pressure of - Science - Work and Energy

Question

1 tractors have broad tires give reason
2 a thrust of 200newton exerts a pressure of 20 Pascal on a body
calculate the area on which the pressure is exerted
3 the relative density of mercury is 13 6 state its density in SI
unit
4 an iron nail sinks in water while an iron ship floats in water
why?
5 derive an expression for kinetic energy of a body of mass (m)
moving with initial velocity (u)
6 a bullet of mass 50g is shot at 400m/s what is the kinetic energy
of the bullet

Faizu · Accepted Answer

1 )The tractors have broad tyres so that there is less pressure on
the ground and the tyres do not sink into comparatively soft ground
in the fields