Question

A force of 10 newton is applied to a stationary mass of 25kg . the work done in 1st second is givenn by

Answer 1

Since we know that,

Work done = Force x Displacement

As given in question, Displacement = 0
Hence, Work done = 0

Answer 2

Answer:

Concept:

Work is the energy delivered to or from an item by applying force across a displacement in physics. It is commonly depicted as the sum of forces and moments in its simplest form. When applied, a force is said to do positive work if it has a proportion in the direction of the point of application's displacement. If a force has a component that is opposite the direction of movement at the point of application, it causes negative work.

Given:

A stationary mass of 25kg is subjected to a force of 10 newtons. The task completed in the first second is provided by

Find:

find the work done given by

Answer:

Work is determined using the formula Work = Force x Distance. The joule (J), often known as the Newton, is the SI unit for labour (N. m)

Work = Force x Distance is the formula for computing work. As a result, to compute the distance between force and work, follow these

steps: Calculate the amount of work done, W, when a force, F, is applied. Subtract the amount of work done, W, from the amount of force applied, F.

$work$ $done=force*displacement$

$force=10N$

$displacement=?$

find displacement

$F = ma$

$10N = 25a$

$a=\frac{10}{25}m/s^{2}$

$s=ut+\frac{1}{2}at^{2}$

$s=\frac{1}{2}$ × $\frac{10}{25}$ × $1$

$s=\frac{5}{25}$

$s=\frac{1}{5}m$

$W=F.S$

$w = fs$ $cos$θ

$w=fs$

$w=\frac{10*1}{5}$

$w = 2J$

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