Question

Force 800n to stop a car moving at the same speed , yet the car stopped at a distance of 12 meter . How much work was done at this place?

Answer 1

Answer -

• The work done is 9600J.

To find -

• The work done.

Step-by-step explanation -

Here, it is given that -

• Force of the car = 800N.
• Distance = 12 metre.

We know that -

$\underline{\boxed{\sf{Workdone = F \times d}}}$

Where,

• F = Force.
• d = Distance.

Here,

• F = 800N.
• d = 12 m.

Therefore,

$\mapsto \tt{Workdone = F \times d}$

$\mapsto \tt{Workdone = 800N \times 12m}$

$\mapsto \tt{Workdone = 9600Nm}$

Converting Newton metre (Nm) to Joule (J),

We know that -

$\underline{\boxed{\sf{1J = 1N \times 1m = 1Nm}}}$

So,

• If 1 Nm = 1J

Then -

• 9600Nm = 9600J.

Hence -

• The workdone is 9600J.

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Answer 2

Answer :-

• The work done is 9600 J .

Question :-

Force 800N to stop a car moving at the same speed , yet the car stopped at a distance of 12 meter . How much work was done at this place?

Given :-

• Force of the car = 800 N . (F)
• Distance = 12 Metre . (D)

Find :-

• Work done = ?

We need to know :-

$\boxed{\tt \: w = f \times d} \star$

Here ,

• W = Work done .
• F = Force .
• D = Distance .

❒Solution :-

$➢ \boxed{\tt \: w = f \times d} \star$

$\tt \: w \: = \: 800 N \times 12m$

$\boxed{ \bf\tt \: w = 9600 \:Nm}$

Now Converting Newton metre (Nm) to Joule (J) :-

1 Joule = 1 Newton ✖ 1 metre = 1 Newton metre (Nm)

Simply it means

1 Joule = 1 Newton Metre. (Nm)

9600 J = 9600 Newton Metre (Nm)

$\tt \therefore\: Work \:done\: is\:9600j$

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