Question

A boy pulls a wagon along a horizontal surface for a distance of 10.0 meters. The boy applies a force of 15N straight along the handle while the wagon moves, and the handle makes an angle 35 degrees with the horizontal. How much work does the boy do on the wagon?​

Answer 1

Answer:

• 120 Joules

Explanation:

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★ Gɪᴠᴇɴ ★

• F = 15N
• θ = 35°
• S = 10.0m

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☯ Tᴏ Fɪɴᴅ ☯

• Work done by the boy

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✿ Fᴏʀᴍᴜʟᴀ Aᴘᴘʟɪᴇᴅ ✿

• W = F S cosθ

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✪ Sᴏʟᴜᴛɪᴏɴ ✪

❥ Work done by the boy

→ W = F S cosθ

→ W = 15 × 10.0 × 0.82 ≈ 120 Joules

★ Hence, Work done by the boy is 120J

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