Question

Calculate the work done in kilo joules in lifting a mass of 10kg at steady velocity through vertical height of 10m.

Answer 1

Answer:

formula: work done = mgh

Explanation:

m=10 kg

g=10 m/s^2

h=10 m

Ans=> work done= 10*10*10

=1000 j

=1 kj

Answer 2

$\huge {\red{\boxed{ \overline{ \underline{ \mid\mathfrak{An}{\mathrm{sw}{ \sf{er}} \colon\mid}}}}}}$

Work Done in lifting Weight of 10 kg at height of 10 m is 1kJ .

It can be calculated by using formula :

$\huge{\boxed{\boxed{\sf{Work \: = \: mgh}}}}$

• m is mass
• g is gravitational force
• h is height

Substitute Values

$\rightarrow {\sf{W \: = \: 10 \: \times \: 10 \: \times \: 10}} \\ \\ \rightarrow{\sf{W \: = \: 100 \: \times \: 10}} \\ \\ \rightarrow{\sf{W \: = \: 1000 \:J}} \\ \\ \rightarrow {\sf{W \: = \: \dfrac{1000}{1000}}} \\ \\ \rightarrow {\sf{W \: = \: 1 \: kJ}}$

# Learn more

derive the expression for the work done when the displacement is in the direction of force

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