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A 42.2 kg sled is pulled forward with a 143 N force across the ground with [tex]\mu_k = 0.269[/tex]. What is the net force on the sled?

Answer :

The net force on the sled is 31.89 N. During sledding, the main forces are normal force and gravity.

What are the forces at work on a sledge?

The weight of the sledge and its rider, the normal force, and the kinetic frictional force all act on the moving sledge.

What is the purpose of calculating net force?

Net force is significant because it describes the motion of an object and can be used to calculate acceleration. Newton's first law of motion states that an object in motion will remain in motion, while an object at rest will remain at rest unless acted on by an unbalanced net force.

We can calculate by using the equation:

Net force = Force applied - Force of friction

where Force of friction = coefficient of kinetic friction (μk) * Normal force

we can use the equation:

Normal force = weight of sled

weight of sled = mass * gravitational acceleration

we know that gravitational acceleration (g) = 9.8 m/s^2

Therefore, the normal force = 42.2 kg * 9.8 m/s^2 = 413.56 N

The force of friction:

Force of friction = 0.269 * 413.56 N

= 111.11 N

We can calculate,

Net force = 143 N - 111.11 N = 31.89 N

To know more about the net force visit:

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