Physics, 11.06.2021 19:30 darkghostmist

3. A 50 kg sled is pulled at a constant speed by a 70 N force. a) What is the force of friction? How do you know?
b) What is the coefficient of friction?
c) How much force is required to pull the sled with a 20 kg box on it?

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3. A 50 kg sled is pulled at a constant speed by a 70 N force. a) What is the force of friction? Ho...