A Box Is Moved 10 M Across a Smooth Floor

question 44

Multiple Choice

A box is moved 10 m across a smooth floor by a force F making a downward angle with the floor, so that there is effectively a 4 N force acting parallel to the floor in the direction of motion and a 3 N force acting perpendicular to the floor. The force F acts for 20 seconds. The impulse delivered to the box by the floor during this process has magnitude

• A) 100 Ns.
• B) 80 Ns.
• C) 60 Ns.
• D) zero.
• E) Can't tell without knowing the weight of the box.

Understand the basics of childhood nutrition and its impact on health and development.

Comprehend the development of motor skills and cognitive abilities during middle childhood.

Analyze the relationship between brain development and cognitive abilities in children.

Recognize the influence of societal and cultural expectations on the development of motor and cognitive skills.

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