An apple is thrown upwards. Which of the following force diagrams best models the forces acting on the apple after it has left the person’s hand and while it’s moving upwards?
Responses
An apple with two opposing forces. A vector showing throw force (person on apple) is equal to a vector showing gravitational force (Earth on apple).
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An apple with two opposing forces. A vector showing throw force (person on apple) is shorter than a vector showing gravitational force (Earth on apple).
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veronchick84/Shutterstock
An apple with one force vector showing gravitational force (Earth on apple) pointing down.
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veronchick84/Shutterstock
An apple with two opposing forces. A vector showing throw force (person on apple) is longer than a vector showing gravitational force (Earth on apple).
Labels and arrows added by FlipSwitch.
veronchick84/Shutterstock
5 answers
An apple with two opposing forces. A vector showing throw force (person on apple) is equal to a vector showing gravitational force (Earth on apple).
Labels and arrows added by FlipSwitch.
veronchick84/Shutterstock
Study the scenario.
A toy car is pushed across the floor with a force of 4 N to the right. There is 1 N of friction acting on the car to the left.
What is the net force acting on the car?
Responses
3 N
4 N
0.25 N
5 N
Applied force = 4 N (to the right)
Force of friction = 1 N (to the left)
Net force = Applied force - Force of friction
Net force = 4 N - 1 N
Net force = 3 N
Therefore, the net force acting on the car is 3 N.
Response: 3 N
Responses
300 N, up
500 N, up
300 N, down
8.3 N, down
Net force = mass x acceleration
Given:
Mass of the skydiver = 50 kg
Acceleration of the skydiver = 6 m/s²
Net force = 50 kg x 6 m/s²
Net force = 300 N
Therefore, the net force on the skydiver is 300 N, down.
Response: 300 N, down