A boy pushes a toy box 2.0 m along the floor by means of a force of 10 N directed downward at an angle of 60° to the horizontal. The work done by the boy is

Question

A boy pushes a toy box 2.0 m along the floor by means of a force of 10 N directed downward at an angle of 60° to the horizontal. The work done by the boy is (A) 6 J (B) 8 J (C) 10 J (D) 12 J

Tardigrade Admin · Accepted Answer

W = F s cos θ=10 × 2 cos 60°=10 J

Q. A boy pushes a toy box $2.0 m$ along the floor by means of a force of $10 N$ directed downward at an angle of $6 0^{\circ}$ to the horizontal. The work done by the boy is

6 J

8 J

10 J

12 J

$W = F s cos θ = 10 \times 2 cos 6 0^{\circ} = 10 J$

Q. A boy pushes a toy box 2.0m along the floor by means of a force of 10N directed downward at an angle of 60∘ to the horizontal. The work done by the boy is

6 J

8 J

10 J

12 J

W=Fscosθ=10×2cos60∘=10J

Q. A boy pushes a toy box $2.0 m$ along the floor by means of a force of $10 N$ directed downward at an angle of $6 0^{\circ}$ to the horizontal. The work done by the boy is

$W = F s cos θ = 10 \times 2 cos 6 0^{\circ} = 10 J$