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Login*Solution:*
1. *Total height climbed*:
$$h = 44 imes 0.15 ext{m} = 6.6 ext{m}$$
2. *Work done (potential energy gained)*:
$$W = mgh = 50 ext{kg} imes 10 ext{m/s}^2 imes 6.6 ext{m} = 3300 ext{J}$$
3. *Power*:
$$P = rac{W}{t} = rac{3300 ext{J}}{10 ext{s}} = 330 ext{W}$$
So the boy's power is *330 W*. 🚀
*Solution:*
1. *Total height climbed*:
$$h = 44 imes 0.15 ext{m} = 6.6 ext{m}$$
2. *Work done (potential energy gained)*:
$$W = mgh = 50 ext{kg} imes 10 ext{m/s}^2 imes 6.6 ext{m} = 3300 ext{J}$$
3. *Power*:
$$P = rac{W}{t} = rac{3300 ext{J}}{10 ext{s}} = 330 ext{W}$$
So the boy's power is *330 W*. 🚀