Question

Calculate the amount of work done when a force of 30N displaces a body through 25m in its own direction.


define velocity​

Answer 1

Work done

Work done is a scalar quantity represented by the product of force and the distance for which the object has been moved. It is represented as WD SI units of force and displacement are Newton and meter respectively. Thus the SI unit of work done is Newton-meter. This is also called Joule.

Work represents the energy expended by the force in order to move the object.

Work, being a scalar doesn't have any direction, just has magnitude.

Here, we've given that a force of 30N displaces a body through 25m in its own direction. With this information, we've been asked to calculate the amount of work done.

We know that, the product of force and displacement is equal to the work done. In mathematical term it will be like this,

$\implies \boxed{\bf{WD = F.s}}$

[Here, WD refers the work done, F refers the force and s refers the displacement.]

By using the formula and substituting the available values in it, we get:

$\implies \rm{WD = 30 \times 25} \\\\ \implies \boxed{\bf{WD = 750 \: J}}$

Hence, the amount of work done is 150 Joule.

$\rule{150}{2}$

Velocity - Motion

Velocity is defined as the speed at which object or something cover a distance in a particular direction.

The velocity (v) is known to be a vector quantity that deals with change in position or displacement (Δx) and the change in time (Δt).

$\implies \boxed{\bf{v = \dfrac{\Delta x}{\Delta t}}}$

Answer 2

Answer:

Given :-

• A force of 30N displaces a body through 25m in its own direction.

To Find :-

• Calculate the amount of work done.

Solution :-

☣ Work Done :

$\red{ \boxed{\sf{Work\: Done =\: Force \times Displacement}}}$

We have :

• Force = 30 N
• Displacement = 25 m

➦ Work Done = 30 N × 25 m

➲ ${\large{\bold{\purple{\underline{Work\: Done =\: 750\: J}}}}}$

Henceforth, the amount of work done is 750 Nm.

$\qquad\qquad\underline{\textsf{\textbf{ \color{magenta}{Velocity :-} }}}$

• Velocity is the rate of motion, speed or action.
• Velocity is a vector quantity.
• The SI unit of velocity is also metre per second.

~~~~~~~~~~~~~~~~~~~~~~~~

$\bigstar\:{\underline{\mathscr{Extra\: Brainly\: Shots :-}}}$

Displacement :

• Displacement is defined as the change in position of an object.
• This change in position of an object is known as Displacement.

Work Done :-

• Work done is defined as a product of the force and the distance over which the force is applied.
• Work is done when a force is applied to an object and the object is moved through a distance.
• Work done = force × displacement. = F × s.
• The SI unit of work is the joule (J).

Force :

• Push and pull come from the objects interacting with one another.

Basically, there are two types of forces:

• Non-contact forces
• Non-contact forcesContact forces
• Example: Pushing or pulling a door by applying force.

HOPE IT HELPS YOU :)