A 20-Kg Particle Has an Initial Velocity Of Of $( 5 \tilde { \mathbf { i } } - 4 \tilde { \mathbf { j } } )$

question 50

Multiple Choice

A 2.0-kg particle has an initial velocity of $( 5 \tilde { \mathbf { i } } - 4 \tilde { \mathbf { j } } )$ m/s.Some time later,its velocity is $7 \tilde { \mathbf { i } } + 3 \tilde { \mathbf { j } }$ m/s.How much work was done by the resultant force during this time interval,assuming no energy is lost in the process?

• A)17 J
• B)49 J
• C)19 J
• D)53 J
• E)27 J

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Definitions:

Negation

The contradiction or denial of something, often expressed in linguistic terms as "not."

Bi-conditional

A logical connection between two statements where both are true or both are false.

Tautology

A statement that is true by necessity or by virtue of its logical form, often repeating the same idea in different words.

Self-contradictory

A statement or position that contradicts itself, making it logically impossible or nonsensical.