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lubasha
1 month ago
15

Sally is pushing a shopping cart with a force of 20 N. Because the wheels are stuck, the friction caused by the ground is exerti

ng a force of 8 N in the opposite direction. Calculate the net force on the shopping cart including an arrow indicating what direction the shopping cart is going
Physics
1 answer:
ValentinkaMS [3.4K]1 month ago
0 0

The resultant force acting on the shopping cart is 12 N to the right.

This is a scenario related to Newton's Laws. A Free Body Diagram can be utilized to illustrate all the forces acting on the object. There are four forces at play:

  1. Gravity (g) acting downward.
  2. Normal force (N) acting upward.
  3. The force exerted by Sally (Fp) acting to the right.
  4. Friction force (Ff) acting to the left.

The first two forces (1 and 2) counteract one another as they are equal, while the overall force can be determined by combining forces (3) and (4)

F=Fp+Ff=20N+ (-8N)=12N

The positive value indicates that the shopping cart is moving towards the right.

Have a good day!

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