Giancoli's Physics: Principles with Applications, 7th Edition
4
Dynamics: Newton's Laws of Motion
Change chapter4-4 to 4-6: Newton's Laws, Gravitational Force, Normal Force
4-7: Newton's Laws and Vectors
4-8: Newton's Laws with Friction, Inclines
Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 1
Q
What force is needed to accelerate a sled (mass = 55 kg) at on horizontal frictionless ice?
A
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VIDEO TRANSCRIPT
This is Giancoli Answers with Mr. Dychko. The applied force is the only force horizontally and so that makes it the net force, and so it equals ma. And the mass is 55 kilograms and the acceleration is 1.4 meters per second squared which gives 77 Newtons.
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