Question

why it is easier to pull a lawn mower than to push it. Eplain it with diagram
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it should be very clear plz ​

Answer 1

It is easier to pull a lawn roller than to push it. Explain using the resolution of forces. Answer: The force applied to move a body depends upon effective force applied on it including its weight. As effective weight in the case of pulling is less than in the pushing, less force is required in pulling. Hence, it is easier to pull than to push. In case of pulling, effective weight of lawn mover = mg-f sin θ In case of pushing, effective weight = mg+ f sin θ

Answer 2

While pulling a lawn mower, a force at an angle θ is applied on it, as shown in the following figure.

The vertical component of this applied force acts upward. This reduces the effective weight of the mower.

On the other hand, while pushing a lawn mower, a force at an angle θ is applied on it, as shown in the following figure 2nd one.

In this case, the vertical component of the applied force acts in the direction of the weight of the mower. This increases the effective weight of the mower.

Since the effective weight of the lawn mower is lesser in the first case, pulling the lawn mower is easier than pushing it.