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doing the dynamics trolley exp. for Newtons 2nd law. stuck on a couple of q's, i realize the concept but i am having trouble expressing it:)
1.why is the mass in net force=ma not just equal to the mass of the cart?
2.when calculating the force on the cart using mass times gravity, why isn't the mass of the cart included?
1.why is the mass in net force=ma not just equal to the mass of the cart?
2.when calculating the force on the cart using mass times gravity, why isn't the mass of the cart included?