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ivolga24 [154]
3 years ago
12

A fishing boat drags a net for 25 seconds, doing 3500 Joules of work. How much power was the boat using?

Physics
1 answer:
Blizzard [7]3 years ago
5 0
The equation for power is P=w/t, where w=work done in joules and t=time in seconds. 

in this case:

p=w/t
p=3500/25 
p=140

so, the boat was using 140 watts of power.
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Primary Logo

Machine

Subject: Science

Home Grade 9 Science Machine Machine

Enter your keywords

Syllabus

Measurement

Force

Machine

Machine

Types of Simple Machine

Moment

Work Energy and Power

Sound

Light

Electricity and Magnetism

Kaspersky total security

Overview

Simple machine helps us by magnifying force, accelerating work and by changing the direction of force. This notes gives us the information about machine, its importance, mechanical advantage, velocity ratio.

Note

Things to remember

Videos

Exercise

Quiz

Machine

We use various tools to perform different types of work in our daily life. The tools or simple devices used for making our work easier, faster and more convenient are simple machines.

Those tools or devices which make our work easier and convenient in the direction of the force is called simple machine.

Purpose of using simple machine

Simple machines are used to make our work easier in the following ways:

By multiplying force.

By changing the directions of force.

By transferring force from one point to another.

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