If multiple forces are acting on an object, which statement is always true? (1 point)
A.) The acceleration will be directed in the direction of the net force.
B.) The acceleration will be directed in the direction of the gravitational force.
C.) The acceleration will be directed in the direction of the applied force.
D.) The acceleration will be directed in the direction of the normal force.
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)
A.) The gravitational force is greater than the drag.
B.) The net force on the ball is zero.
C.) The drag is greater than the gravitational force.
D.) The net force on the ball is directed upward.
A boy who exerts a 300-N force on the ice of a skating rink is pulled by his friend with a force of 75 N, causing the boy to accelerate across the ice. If drag and the friction from the ice apply a force of 5 N on the boy, what is the magnitude of the net force acting on him? (1 point)
A.) 380 N
B.) 70 N
C.) 370 N
D.) 80 N
Four friends push on the same block in different directions. Allie pushes on the block to the north with a force of 18 N. Bill pushes on the block to the east with a force of 14 N. Chris pushes on the block to south with a force of 23 N. Debra pushes on the block to the west with a force of 20 N. Assuming it does not move vertically, in which directions will the block move? (1 point)
A.) north and east
B.) north and west
C.) south and east
D.) south and west
Net Force and Acceleration Quick Check
5 of 55 of 5 Items
Question
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)
A.) 20 N to the left
B.) 20 N to the right
C.) 40 N to the right
D.) 40 N to the left
what, no canned answer?
Plenty of natural language here.
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Nov 3, 2021
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