while a block slides forward 1.35 m, a force pulls back at a 135 direction, doing -17.8 J of work. what is the magnitude of the

Question

3 years ago

9

force?(unit=N)PLEASE HELP

1 answer:

igomit [66] · Answer 1 · 2022-04-28T07:45:48+03:00

The magnitude of the force is 18.6 N

Explanation:

The work done by a force pushing/pulling an object is given by the equation:

$W=Fd cos \theta$

where:

F is the magnitude of the force

d is the displacement of the object

$\theta$ is the angle between the direction of the force and the direction of the displacement

For the block in this problem, we have:

$W=-17.8 J$ is the work done

d = 1.35 m is the displacement

$\theta=135^{\circ}$ is the angle

Solving the equation for F, we find the magnitude of the force:

$F=\frac{W}{dcos \theta}=\frac{-17.8}{(1.35)(cos 135)}=18.6 N$

Learn more about work here:

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