A particle of mass $250\mathrm{g}$ moving along the x axis has velocity $v_x=\left(7.6x^3\right)m/s$ with x measured in m. How much work is done on the particle as it moves from $\mathrm{x}=0.0\mathrm{m}$ to $\mathrm{x}=2.0\mathrm{m}$?

Two forces, F₁→ = (1.50î - 0.80 ĵ + 0.70k̂) N and F₂→ = ( - 0.70î + 1.20 ĵ) N, are applied on a moving object of mass 0.20 kg. The displacement vector of the object while the two forces act is d→ = (6.0 î + 8.0 ĵ + 5.0 k̂ ) m . What is the work done by the two forces?

You pull a 5kg box vertically up with a constant 100N force for 2m. How much work do you do?

You push a 3kg box against a wall for a distance of 2m with a force of 40N that makes a 53° angle with the horizontal, as shown. Calculate the work done by gravity.