Question

Calculate work done mas 20 kg in height of 10 m

Answer 1

Given :-

Mass = 20 kg

Height = 10 m

To Find :-

Calculate work done.

Solution :-

We know that,

• m = Mass
• w = Work
• f = Force
• s = Displacement
• a = Acceleration

By the formula,

$\underline{\boxed{\sf Force=Mass \times Acceleration}}$

Given that,

Mass (m) = 20 kg

Acceleration (a) = 10 m/s

Substituting their values,

f = 20 × 10

f = 200 N

Using the formula,

$\underline{\boxed{\sf Work \ done = Force \times Displacement }}$

Given that,

Force (f) = 200 N

Displacement (s) = 10 m

Substituting their values,

w = 200 × 10

w = 2000 J

Therefore, the work done is 2000 J.

Answer 2

Explanation:

Given :

• mass = 20 kg

• height = 10

To Find :

• Find The Value of work

Solution :

Concept :

As we know that

Work = FS

Where

F : force

S : distance

Here , N is Newton it is SI unit of Force

Now , writing dimensional formula

Now , writing the dimensional formula

Dimensional formula = M¹L²T-²

★ Knowledge enhancer:

SI units

• Force → N or kgm/s²

• Work → J or kgm²/s²

• Energy → J or kgm²/s².

• Time → s

• Mass → kg

• Distance → m

• Momentum → kgm/s

• Temperature → Kelvin

Note: All dimensional formulas are represented by mass , distance & time

__________________________

$: \implies \: \: \: \: \: \boxed{ \sf \: work = mass \: \times Acceleration \: \times Displacement\: }$

Substitute all value :

$: \implies \: \: \: \: \: \sf \: work = 20 \times 10 \times 10 \\ \\ \\ : \implies \: \: \: \: \: \sf \: work = 20 \times 100 \\ \\ \\ : \implies \: \: \: \: \: \sf \: work = 2000 j$