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Answer on Mechanics | Relativity Question for PhysicsOlympics

Question #24173
Hello! If you could please explain and solve these problems it would be very much appreciated!

1. A 4.0 kg cart has a force of 20.0 N pushing East and a force of 5.0 N pushing west. The initial speed of the cart is 20. m/sec. At time = 12.0 sec, what will Vf and (delta)X be?

2. A 200kg person is standing on a bathroom scale inside an elevator that is accelerating up at 2.5 m/s^2. What will the bathroom scale read? How far will he travel in 1.5sec?
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