Question

3) 15 m long. The work done by the bullocks is​

Answer 1

Explanation:

GIVEN:-

=>The field being ploughed is 15 m long.

=> A pair of bullocks exerts a force of 140 N on a plough.

TO FIND:-

=> The work done by the bullock.

UNDERSTANDING THE CONCEPT:-

According to the question,

=>we know the force and displacement, So it is clearly visible that we can calculate the work done by the respective formula.

CONCEPT REFRESHER:-

=>We know the formula of work done,

Work done = Force – Displacement

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=>Work done = Force – Displacement

W= F – d

Where,

=> Applied force, F = 140 N

=> Displacement, d = 15 m

W= 140 — 15

= 2100 J

Hence, 2100 J of work is done in ploughing the length of the field

Answer 2

Explanation:

Explanation:

GIVEN:-

=>The field being ploughed is 15 m long.

=> A pair of bullocks exerts a force of 140 N on a plough.

TO FIND:-

=> The work done by the bullock.

UNDERSTANDING THE CONCEPT:-

According to the question,

=>we know the force and displacement, So it is clearly visible that we can calculate the work done by the respective formula.

CONCEPT REFRESHER:-

=>We know the formula of work done,

Work done = Force – Displacement

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Answer:

=>Work done = Force – Displacement

W= F – d

Where,

=> Applied force, F = 140 N

=> Displacement, d = 15 m

W= 140 — 15

= 2100 J

Hence, 2100 J of work is done in ploughing the length of the field