Question

Calculate the height through which a body of mass 40 kg can be lifted when 800J of
work is done on it. Take g=10 ms‐2​
​

Answer 1

Answer:

$\bold{mass \: = \: 40 \: kg}$

$\bold \purple{g \: \: = \: \: 10 \frac{m}{s} }$

$\bold \pink{work \: = \: 800 \: joule}$

$\bold \blue{work = force \times displacement \times time}$

$\bold \green{force = mg}$

$\huge \underline{ there \: fore : }$

$\bold \red{work = mass \times g \times height}$

$\bold {800 = 40 \times 10 \times height}$

$\bold{800 = 400 \times height}$

$\boxed{\bold{height = \frac{800}{400} }}$

$\huge \boxed {\green{height = 2}}$

$\bold \blue{hope \: this \: helps \: you : - > }$