an old chrysler with mass 2750 kg is moving along a straight stretch of road at 70 km/h. it is followed by a ford with mass 1800 kg moving at 45 km/h. how fast is the center of mass of the two cars moving?

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26-10-2022
Physics

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an old chrysler with mass 2750 kg is moving along a straight stretch of road at 70 km/h. it is followed by a ford with mass 1800 kg moving at 45 km/h. how fast is the center of mass of the two cars moving?

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Tutorconsortium216 Tutorconsortium216 · Answer 1 · 2022-10-28T23:46:53-04:00

Let Mc represent the Chrysler's mass and Vc represent its speed. Let Mf represent the Ford's mass and Vf represent its speed. Consequently, the center of mass's velocity is

V com = (McVc + MfVf) / (Mc + Mf)

= (2750*70 + 1800*45) / (2750+1800)

= 273500/4550

= 60.110 km/hr

The two terms in the numerator have the same sign because the two velocities are in the same direction.

Speed is the ratio of the distance traveled to the time required to cover that distance. Speed is a scalar value because it just has a direction but no magnitude.

The unique location where the weighted relative position of the scattered mass adds to zero is known as the center of mass. Here is where a force can be applied to produce a linear acceleration without also producing an angular acceleration.

To know more about center of mass, click on the link below:

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