Explanation:
physical quantity is any physical property that can be qualified that,is, be measured using numbers e.g mass, amount of substance,time and length
Rock climbing. Free diving. Sky diving. Dog sledding.
Answer:
Explanation: Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force.
So the result is not biased or affected in some way
Work done = force * distance
work done = 200 * 20
work done = 4000J
