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How do you solve this ? Why is the ans C not B ?
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How do you solve this ?
Why is the ans C not B ?

How do you solve this ? Why is the ans C not B ?-example-1
User Sireesha J
by
4.7k points

1 Answer

1 vote

Step-by-step explanation:

Draw a free body diagram of the toolbox. There are two forces:

Weight force mg pulling down,

and applied force F pulling up.

Sum of forces in the y direction:

∑F = ma

F − mg = ma

45 N − 15 N = (3 kg) a

a = 10 m/s²

The answer should be B. It's possible the answer key has a mistake.

User Martel
by
4.8k points
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