A force $F = (5^i + 3^j)$ newton. Over a particle which displacement it from its origin to the point r $= (2^i + 1^j)$ meters. The work done on the particle is

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Solution

Given
Force, $\to F = (5^i + 3^j) N$
Displacement . $\to r = (2^i +^j)$ m
So, Work done on the particle , $W = \to F \cdot \to r = 10 + 3 = 13 J$

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A force F=(5^i+3^j) newton. Over a particle which displacement it from its origin to the point r=(2^i+1^j) meters. The work done on the particle is

GivenForce, →F=(5^i+3^j) NDisplacement . →r=(2^i+^j)m So, Work done on the particle , W=→F⋅→r=10+3=13 J

A force $F = (5^i + 3^j)$ newton. Over a particle which displacement it from its origin to the point r $= (2^i + 1^j)$ meters. The work done on the particle is

Given
Force, $\to F = (5^i + 3^j) N$
Displacement . $\to r = (2^i +^j)$ m
So, Work done on the particle , $W = \to F \cdot \to r = 10 + 3 = 13 J$