Question

Physics:
(a) What is the work done by a horse in displacing a cart through 5 m in the direction of the force applied by the horse is 10 N?
(b) 2 joules of work is done in displacing a stone through 0.5 m. Find the force applied on the stone.

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Answer 1

Answer:

I hope my answer may help you :)

Answer 2

${\underline{\underline{\bf{Question:}}}}$

• (a) What is the work done by a horse in displacing a cart through 5 m in the direction of the force applied by the horse is 10 N?

${\underline{\underline{\bf{Solution:}}}}$

Given:

• Force = 10 N
• Displacement = 5 m

To find:

• The work done by the horse.

Answer:

We know, $\underline{\boxed{\sf{W= F\times s}}}$

Where,

• W = Work
• F = Force
• s = Displacement

Now, by substituting the given values gives the required answer.

$\:\:\:\:\:\:\implies{\sf{F\times s}}$

$\:\:\:\:\:\:\implies{\sf{10\times 5}}$

$\:\:\:\:\:\:\implies{\underline{\sf{\red{50\:joules}}}}$

• Therefore, the work done by the horse was 50 J.

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${\underline{\underline{\bf{Question:}}}}$

• (b) 2 joules of work is done in displacing a stone through 0.5 m. Find the force applied on the stone.

${\underline{\underline{\bf{Solution:}}}}$

Given:

• Work = 2 J
• Displacement = 0.5 m

To find:

• The force applied on the stone.

Answer:

We know, $\underline{\boxed{\sf{W= F\times s}}}$

Where,

• W = Work
• F = Force
• s = Displacement

Now, by substituting the given values gives the required answer.

$\:\:\:\:\:\:\implies{\sf{W=F\times s}}$

$\:\:\:\:\:\:\implies{\sf{2 J = F\times 0.5 m}}$

$\:\:\:\:\:\:\implies{\sf{\frac{2}{0.5}=F}}$

$\:\:\:\:\:\:\implies{\underline{\sf{\red{4\:N}}}}$

• Therefore, the force applied on the stone was 4 N.

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