Suppose a block moves across a rough horizontal surface at constant speed under the action of a horizontal 3-N force. Which statement concerning this situation is not true?

a. There is more than the 3-N horizontal force acting on the block.

b. The net force on the block is 3-N

c. The frictional force on the block has a magnitude of 3-N.

d. The net force on the block is zero Newtons.

e. The block is not accelerated.

Question

Physics

Seamus Carroll

25 September, 10:44

Suppose a block moves across a rough horizontal surface at constant speed under the action of a horizontal 3-N force. Which statement concerning this situation is not true?

a. There is more than the 3-N horizontal force acting on the block.

b. The net force on the block is 3-N

c. The frictional force on the block has a magnitude of 3-N.

d. The net force on the block is zero Newtons.

e. The block is not accelerated.

+1

Answers (1)

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Porter Wright · Answer 1

A block is moving with constant velocity action the action of 3 N force.

Statement A: False, as the block is moving with constant velocity so net force is zero.

Statement B: False, as the net force is zero.

Statement C: True, the friction force is equal to the applied force.

Statement D: True: The net force is zero so that the block is moving with constant velocity.

Statement E: True, the net force is zero so the acceleration is also zero.