Question

a man caries a load of 50kg tbrough a eght of 40m in 25 sec. if tthw power pf man is 1568W then fins his mass g = 10​

Answer 1

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Answer 2

Correct Question :-

A man carries a load of 50 kg through a height of 40 m in 25s. If the power of the man is 1568W , then find his mass? ( Take g = 10 m/s²)

Answer

Given :-

• Mass of load = 50 lg
• Height = 40 m
• Time = 25 s
• Power = 1568 W
• Acceleration due to gravity = 10 m/s²

To find :-

Mass of man -$\sf m_m$

Solution :-

$\boxed{\sf P = \frac{mgt}{t}}$

• $\sf m_t = 50 kg$
• $\sf h = 40 m$
• $\sf P = 1568 W$
• $\sf g = 10 m/s^2$
• $\sf m = m_L + m_m$

Substituting the value in formula :-

$\sf P = \frac{mgt}{t}$

$\sf 1568 = \frac{(50 + m_m) \times 10 \times 40}{25}$

$\sf = 1568 = (50 + m_m)16$

$\sf = m_m + 50 = 98$

$\sf = m_m = 90 - 58$

$\sf = m_m = 48$

Mass of man = 48 kg