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The ease with which you push or pull depends on the amount of friction acting on it.

So pulling is easier than pushing.

**When you pull**with a force F, the vertical component of force will be upward. So the net vertical force will be less than weight of lawn mower. So the normal force will be less(N = mg - F sinФ, where Ф is the angle with which you are pulling) and hence**friction will be less**.**When you push**with a force F, the vertical component of force will be downward. So the net vertical force will be more than weight of lawn mower. So the normal force will be more(N = mg + F sinФ, where Ф is the angle with which you are pushing) and hence**friction will be more**.So pulling is easier than pushing.

### This Is a Certified Answer

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*Lawn mover - pulling or pushing*When we pull a lawn mover, the force exerted is directed outwards from the ground along the lawn mover handles. The force F applied through hands, is inclined at an angle Ф to the (horizontal) ground. Let the lawn mover have a mass m.

The

*normal reaction N of the ground*on the lawn mover will be

**N = m g - F SinФ**

Due to reduced normal reaction, the friction (static or kinetic) Ff between the lawn mover and the ground will be reduced from μ m g to μ (m g - F Sin Φ). Hence it is easy to move it along the ground.

*Only thing is one needs to move backwards.*

**The net force F Cos Φ - μ (mg - F Sin Φ) along the horizontal helps the movement of the lawn mover smoothly.**

*net horizontal force = F (cos Φ +μ Sin Φ) - μ m g to drive the lawn mover*

**Minimum Force to be applied by us to just move it, F = μ m g /(Cos Φ + μ Sin Φ)**

===

**along the inclined handle, the force applied is directed into the ground. The normal reaction on the lawn mover by the ground is now = N = (m g + F Sin Φ). Hence the force of kinetic or static friction increase to Ff = μ (m g + F Sin Φ). So it is more difficult to move the lawn mover along the ground. The force F Cos Ф must be more than Ff.**

*When we push the lawn mover*the net horizontal force to drive lawn mover = F Cos Φ - μ mg - μ F Sin Φ

=

*F (Cos Φ - μ Sin Φ) - μ m g*Clearly this force is much less compared the force available in case of pulling the lawn mover.

Minimum Force to be applied by us to move it = F

**= μ m g / (CosΦ - μ SinΦ)**

Clearly this is more than in case of pulling the lawn mover.