Question

A body of weight 50N is lifted by a porter is to keep on his head. If his height is 150cm, what would be the work done by the porter? g = 10m/square m​

Answer 1

Answer:

Given :-

• Mass = 50 N
• Height = 150 cm or 1.5 m
• Acceleration due to gravity = 10 m/s²

To Find :-

Work Done

Solution :-

As we know that

$\huge \frak \pink{W = mgh}$

W is the Work Done

M is the Mass

G is the Acceleration due to gravity

H is the Height

$\sf : \implies \: W = (50)(10)(1.5)$

$\sf : \implies \: W = 500 \times 1.5$

${\boxed {\sf { \underline{ \pink{ : \implies \: W =750 J}}}}}$

Answer 2

Answer:

Explanation:

Given :

• Weight of a body (mg) = 50 N
• Height (h) = 150 cm
• Acceleration due to gravity (g) = 10 m/s²

To Find :

• Work done by the porter, W

Formula to be used :

• W = mgh

Solution :

★Converting units,

h = 150 cm

⇒ h = 150/100

⇒ h = 1.5 m

★Work done by the porter,

W = mgh

⇒ W = 50 × 1.5

⇒ W = 75 j

Hence, Work done by the porter is 75 J.