Answered

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what is the right optionA box is standing on a conveyor belt that is not in motion. At one point the belt starts moving with some acceleration. At that point the box starts moving too (without slipping). Which force is responsible for the acceleration of the box. a. The air resistance force. b. The force of the pull. c. The force of friction. d. The normal force.Answer only part B.

What Is The Right OptionA Box Is Standing On A Conveyor Belt That Is Not In Motion At One Point The Belt Starts Moving With Some Acceleration At That Point The class=

Sagot :

After reaching a certain velocity and the belt continues to move at the constant velocity(to the right).

Let's select the correct free body diagram for the box.

When the belt was at rest and the belt was placed, the horizontal velocity was zero.

When the belt started moving with some acceleration, the force of friction will try moving the box to the opposite direction.

But in this case, the belt has attained a certain velocity which makes it to start moving at a constant velocity. At constant velocity acceleration iz zero.

Since it is moving at a constant velocity, the net force is zero since there is no acceleration.

Therefore, there will be no acceleration, there is zero net force.

The free body diagram will be:

Therefore, the correct free body diagram is option b.

ANSWER:

B.

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