Question

A 26.3 kg object is traveling at 21.0 m/s north. What average net force is required to bring this object to a stop in 2.60 seconds?

Answer 1

The average force is -212.4 N

Explanation:

We can solve this problem by using the impulse theorem, which states that the impulse exerted on the object (the product of the force exerted and the time) is equal to the change in momentum of the object:

$F \Delta t = m \Delta v$

where

F is the net force on the object

$\Delta t$ is the time

m is the mass

$\Delta v$ is the change in velocity

In this problem, we have:

m = 26.3 kg

$\Delta v = -21.0 m/s$

$\Delta t = 2.60 s$

Solving for F, we find

$F=\frac{m\Delta v}{\Delta t}=\frac{(26.3)(-21.0)}{2.60}=-212.4 N$

where the negative sign indicates that the direction of the force is opposite to the motion of the object.

Learn more about force and momentum:

brainly.com/question/9484203

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