The speed of a bobsled is increasing becasue it has an accelerationof 2.8 m/s 2

Question

The speed of a bobsled is increasing becasue it has an accelerationof 2.8 m/s2. At a giveninstant in time, the forces resisting the motion, including kineticfriction and air resistance, total 450 N. The mass of the bobsledand its riders is 280 kg. (a) What is the magnitude of the forcepropelling the boblsed forward?
N

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

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

Explanation / Answer

The net force is given by: F = ma F = 280*2.8 F = 784 N Add the net force and resistive force to get the forcepropeling the bobsled forward: 784+450 = 1284 N Hope this helps.

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