1 of 18 Conceptual Question 6.9 Part A The four balls in (Figure 1) have been th

Question

1 of 18 Conceptual Question 6.9 Part A The four balls in (Figure 1) have been thrown straight up They have the same size, but different masses. Air resistance is negligible. Rank in order, from largest to smallest, the magnitude of the net force acting on each balil. Some may be equal Due Rank from largest to smallest. To rank items as equivalent, overlap them. Reset Help Items Figure 1 :let 1. Co 2. 5 m/s 4 m/s Largest 3. 4. Ph 5. 3 m/s 3 m/s 200 g 300 g 300 g 400 g 6. Pro The cormect ranking cannot be deteimined

Explanation / Answer

for a , b , c , d balls

the force acting on ball a

Fa = ma g

Fa = 0.2 X 9.8 = 1.96 N

sameway

Fb = mb g

Fb = 0.3 X 9.8 = 2.94 N

sameway

Fc = mc g

Fc = 0.3 X 9.8 = 2.94 N

sameway

Fd = md g

Fd = 0.4 X 9.8 = 3.92 N

here is b = c

so the order is d > c = b > a

or

d > b = c > a

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