Question

x = 1 is a root of (x^2 - x + 1)^4 +3x.(x^2+x + 4)2 + 2x³ = 0 of multilicity
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Answer 1

Answer:

Answer :

Angle between Force and displacement = 60°

Given :

Displacement of body, s = 5 m

Force applied, F = 50 N

Work done, W = 125 J

To find :

Angle between Force and displacement, θ = ?

Formula required :

Work done is given by the scalar product of Force and displacement vector

     W = F s  cos θ

[ where W is the work done, F is the force applied, s is the displacement and θ is the angle between Force and displacement vector ]

Solution :

Using formula

→ W = F s  cos θ

→ 125 = ( 50 ) ( 5 ) cos θ

→ 125 = 250 cos θ

→ cos θ = 125 / 250

→ cos θ = 1 / 2

also, cos 60° = 1 / 2, therefore,

→ θ = 60°

Hence,

Angle between Force and displacement will be 60° .