A particle which is experiencing a force, given by $\vec{F} = 3 \hat{i} - 12 \hat{j}$ , undergoes a displacement of $\vec{d} = 4 \hat{i}$ . If the particle had a kinetic energy of $3 J$ at the beginning of the displacement, what is its kinetic energy at the end of the displacement?

Question

A particle which is experiencing a force, given by

\vec{F} = 3 \hat{i} - 12 \hat{j}

, undergoes a displacement of

\vec{d} = 4 \hat{i}

. If the particle had a kinetic energy of

3 J

at the beginning of the displacement, what is its kinetic energy at the end of the displacement?

Aicharya · Accepted Answer

Work done by the force, F &#8594; . s &#8594; = 3 i ^ + 12 j ^ &#8901; 4 i ^ = 12 &#160; J By work energy theorem, W total = &#8710; K 12 &#160; J = K f - K i 12 + K i = K f &#8756; K f = 12 + 3 = 15 &#160; J

A particle which is experiencing a force, given by F → = 3 i ^ - 12 j ^ , undergoes a displacement of…

Solution

A particle which is experiencing a force, given by F &#8594; = 3 i ^ - 12 j ^ , undergoes a displacement of…

Solution

A particle which is experiencing a force, given by F → = 3 i ^ - 12 j ^ , undergoes a displacement of…