Question

a pair of bullocks excerts force of 140 Newton on plough the field being plouged is 15m long how much work is done in ploughing the lenght of the field​

Answer 1

Given:

Force exerted by Bullocks,F= 140 N

Length of field ploughed, s= 15 m

To Find:

Work done in ploughing the given length of the field​

Solution:

We know that,

• Work done W is given by

$\pink{\boxed{\bf{W=F.s}}}$

where,

F is the force applied

s is the displacement

$\rule{190}{1}$

Let the work done in ploughing the given length of the field​ be W

So,

$\longrightarrow\rm{W=F.s}$

$\longrightarrow\rm{W=140\times15}$

$\longrightarrow\rm\green{W=2100\ J}$

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

$\rule{190}{1}$

Additional Information

Work

Work is said to be done by a force when the body is displaced by some distance in the direction of applied force.

Force

Force is a push or pull which can change the position and configuration of a body.

Answer 2

Answer:

The moon attracts the earth with the same gravitational force as the earth attracts the moon. ... Since the mass of earth is very large, the acceleration produced is negligible. Therefore, the earth does not move towards the moon.