What impulse was delivered to the sled by the friction force from the rough spot?

- 80 Ns

Explanation:

The complete statement is given as

A sled and rider, gliding over horizontal, friction less ice at 4.0 m/s, have a combined mass of 80 kg. The sled then slides over a rough spot in the ice, slowing down to 3.0 m/s. What impulse was delivered to the sled by the friction force from the rough spot?

= initial velocity of the sled = 4.0 m/s

= final velocity of the sled = 3.0 m/s

= combined mass of sled and rider = 80 kg

= Impulse delivered to sled

Using Impulse-change in momentum equation, Impulse delivered to sled is given as

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation:

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