Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a speed of 0.850 m/s and air track cart B has a mass of 300 g and moves toward the left with a speed of 1.12 m/s
What is the total momentum of the system? A) 0.047 kg?m/s toward the right
B) 0.719 kg?m/s toward the right
C) 0.719 kg?m/s toward the left
D) 0.750 kg?m/s toward the right
E) 0.750 kg?m/s toward the left
A
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Indicate whether the statement is true or false
A body sliding on a table is observed to gradually slow down. The correct statement is that the body slows down because
A. no net force acts on the body. B. no force acts on the body. C. it is the nature of the body to slow down by itself. D. a net force acts on the body.
A 1200-kg ore cart is rolling at 10.8 m/s across a flat friction-free surface. A crane suddenly drops of ore vertically into the cart. How fast does the cart move just after being loaded with the ore?
A) 5.70 m/s B) 4.20 m/s C) 6.30 m/s D) 3.80 m/s
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What will be an ideal response?