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Chapter-4 Forces and Newton's Laws of Motion Question 1. The speed of a bobsled is increasing, because it has an acceleration of 2.75 m/s². At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 505 N. The mass of the bobsled and its riders is 346 kg. (a) What is the magnitude of the force propelling the bobsled forward? (b) What is the magnitude of the net force that acts on the bobsled? Ans: 1456.5 N; 951.5 N nhjort (mass=2.97 kg), as in the drawing. Find (a) the the obiect. Ans: 31.21

Chapter-4 Forces and Newton's Laws of Motion Question 1. The speed of a bobsled is increasing, because it has an acceleration of 2.75 m/s². At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 505 N. The mass of the bobsled and its riders is 346 kg. (a) What is the magnitude of the force propelling the bobsled forward? (b) What is the magnitude of the net force that acts on the bobsled? Ans: 1456.5 N; 951.5 N nhjort (mass=2.97 kg), as in the drawing. Find (a) the the obiect. Ans: 31.21

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Chapter-4 Forces and Newton's Laws of Motion Question 1. The speed of a bobsled is increasing, because it has an acceleration of 2.75 m/s². At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 505 N. The mass of the bobsled and its riders is 346 kg. (a) What is the magnitudes of the force propelling the bobsled forward? (b) What is the magnitude of the net force that acts on the bobsled? Ans: 1456.5 N; 951.5 N Question 2 Only two forces act on an object (mass=2.97 kg), as in the drawing. Find (a) the in the raris) of the acceleration of the object. Ans: 31.21
Transcribed Image Text:Chapter-4 Forces and Newton's Laws of Motion Question 1. The speed of a bobsled is increasing, because it has an acceleration of 2.75 m/s². At a given instant in time, the forces resisting the motion, including kinetic friction and air resistance, total 505 N. The mass of the bobsled and its riders is 346 kg. (a) What is the magnitudes of the force propelling the bobsled forward? (b) What is the magnitude of the net force that acts on the bobsled? Ans: 1456.5 N; 951.5 N Question 2 Only two forces act on an object (mass=2.97 kg), as in the drawing. Find (a) the in the raris) of the acceleration of the object. Ans: 31.21
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