A 15-Kg Object Has a Velocity of 5 $\hat{\mathbf{j}}$ M/s at T = 0

question 22

Multiple Choice

A 1.5-kg object has a velocity of 5 $\hat{\mathbf{j}}$ m/s at t = 0. It is accelerated at a constant rate for five seconds after which it has a velocity of (6 $\hat{\mathbf{i}}$ + 12 $\hat{\mathbf{j}}$ ) m/s. What is the magnitude of the resultant force acting on the object during this time interval?

• A)3.8 N
• B)3.2 N
• C)2.8 N
• D)4.3 N
• E)4.6 N

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Definitions:

David Wechsler

A psychologist who developed several widely used intelligence tests, including the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC).

Alfred Binet

A French psychologist who, together with Theodore Simon, developed the first intelligence test known as the Binet-Simon scale.

Mental Age

A concept used in psychology to describe an individual's cognitive ability level in years, which may differ from their chronological age.

IQ

Stands for Intelligence Quotient, a measure of a person's cognitive abilities and potential compared to the general population, typically determined by standardized tests.