The speed of a bobsled is increasing because it has an accelerationof 2.4 m/s 2

Question

The speed of a bobsled is increasing because it has an accelerationof 2.4 m/s2. At a given instantin time, the forces resisting the motion, including kineticfriction and air resistance, total 450 N. The mass of the bobsledand its riders is 270 kg. (a) What is the magnitude of the forcepropelling the boblsed forward?
1 N

(b) What is the magnitude of the net force that acts on thebobsled?
2 N (a) What is the magnitude of the forcepropelling the boblsed forward?
1 N

(b) What is the magnitude of the net force that acts on thebobsled?
2 N

Explanation / Answer

Accleration a= 2.4 m / s ^ 2

Total ressitinf force F = 450 N

We know a = ( net force / mass )

             Ma = net force

             Ma = F ‘ – F

From this F ‘ = F+ Ma

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