If a ball is accelerating down through the air with no horizontal motion, what must be true about the net forces acting on the ball?(1 point) Responses The net force on the ball is zero. The net force on the ball is zero. The net force on the ball is directed upward. The net force on the ball is directed upward. The drag is greater than the gravitational force. The drag is greater than the gravitational force. The gravitational force is greater than the drag.
3 answers
The net force on the ball is directed upward.
Two teams are playing tug of war. The tables show the members of each team and how much pulling force each team member applies to the rope. Team A Members Pulling Force (N) Darlene 360 Eric 400 Keshawn 450 Team B Members Pulling Force (N) Anita 350 Frank 390 Molly 490 If Team A pulls to the right and Team B pulls to the left, what is the total horizontal net force applied to the rope? (1 point) Responses 40 N to the right 40 N to the right 40 N to the left 40 N to the left 20 N to the left 20 N to the left 20 N to the right
To determine the total horizontal net force applied to the rope, we need to find the difference between the total pulling forces of Team A and Team B.
Total pulling force for Team A = 360 N + 400 N + 450 N = 1210 N
Total pulling force for Team B = 350 N + 390 N + 490 N = 1230 N
Since Team A is pulling to the right and Team B is pulling to the left, we can subtract the total pulling force of Team B from Team A:
Total horizontal net force = Total pulling force for Team A - Total pulling force for Team B
= 1210 N - 1230 N
= -20 N
The negative sign indicates that the net force is in the opposite direction of Team A's pull, which means it is to the left.
Therefore, the correct response is: "20 N to the left."
Total pulling force for Team A = 360 N + 400 N + 450 N = 1210 N
Total pulling force for Team B = 350 N + 390 N + 490 N = 1230 N
Since Team A is pulling to the right and Team B is pulling to the left, we can subtract the total pulling force of Team B from Team A:
Total horizontal net force = Total pulling force for Team A - Total pulling force for Team B
= 1210 N - 1230 N
= -20 N
The negative sign indicates that the net force is in the opposite direction of Team A's pull, which means it is to the left.
Therefore, the correct response is: "20 N to the left."
1 answer