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3 years ago

A bag weighing 20 N is pushed horizontally a distance of 35 m across a

Physics

1 answer:

topjm [15]3 years ago

6 0

Answer:

350J

Explanation:

Given parameters:

Weight of bag = 20N

Distance moved horizontally = 35m

Force applied = 10N

Unknown:

Work done on the bag = ?

Solution:

Work done is the force applied to move a body through given distance.

Work done = Force applied x distance

So;

Work done = 10 x 35 = 350J

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2 years ago

Rotational dynamics about a fixed axis: A person pushes on a small doorknob with a force of 5.00 N perpendicular to the surface

FrozenT [24]

Answer:

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Explanation:

In order to calculate the moment of inertia of the door, about the hinges, you use the following formula:

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τ: torque exerted on the door

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$Fd=I\alpha\\\\I=\frac{Fd}{\alpha}$

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3 years ago