A 4350-Kg Truck Traveling on a Bridge at a Velocity

question 27

Multiple Choice

A 4350-kg truck traveling on a bridge at a velocity of (96.2 km/h,45.3 km/h) passes over a 724-kg car traveling at a velocity of (112 km/h,-35.5 km/h) .The net momentum of the system consisting of the car and truck is

• A)(9.35 * 10⁴ kg m/s,4.77 * 10⁴ kg m/s).
• B)(1.39 * 10⁵ kg m/s,6.19 * 10⁴ kg m/s).
• C)(1.39 * 10⁵ kg m/s,4.77 * 10⁴ kg m/s).
• D)(3.76 * 10⁴ kg m/s,2.45 * 10⁴ kg m/s).
• E)(1.39 * 10⁵ k m/s,-4.77 * 10⁴ kg m/s).

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Definitions:

Sensitive Period

A specific time frame in development when the ability to acquire certain types of skills or knowledge is enhanced.

Egocentrism

A developmental stage where an individual is unable to differentiate between their own perspective and that of others, often seen in children.

Concrete Operational Thinking

A stage of cognitive development in children, as identified by Piaget, where individuals can think logically about concrete events and understand the concept of conservation.

Pubertal Growth Spurt

A rapid increase in height and weight during puberty, resulting from accelerated bone growth.