Question

a student wants to push a box of books with the mass of 50 kg in 3 m horizontally towards the location of the shelves where the books will be placed. how much work to bw done to push the box of books in 3 m if the force exerted is 120 N?

Answer 1

Answer:

The work done is 360 J.

Explanation:

Given that,

Mass = 50 kg

Distance =3 m

We need to calculate the work done

The work done is equal to the product of force and displacement.

Using formula of work done

$W = F\cdot d$

$W = Fd\cos\theta$

Where, F = force

D = distance

θ = Angle between force and displacement

Put the value into the formula

$W=120\times3\cos0^{\circ}$

$W=360\ J$

Hence, The work done is 360 J.