Question: A force F acts in the forward direction on a cart of mass m. A friction force f opposes this motion. (a) Use Newtons second

A force F acts in the forward direction on a cart of mass m. A friction force f opposes this motion.
(a) Use Newton’s second law and show that the acceleration of the cart is F - f/m.
(b) Show that if the cart’s mass is 4.0 kg, the applied force is 12.0 N, and the friction force is 6.0 N, the cart’s acceleration is 1.5 m/s².

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