Question

WILL MARK BRAINLIEST FOR 2 QUESTIONS!!

Answer 1

1) Work is the scalar quantity

2) The ideal mechanical advantage of the ramp is 2

Explanation:

1)

In physics, there are two types of quantities:

- Scalar quantity: a scalar quantity is a quantity having only a number and its units. Therefore, it has no direction. Examples of scalar quantities are: distance, speed, energy, mass, temperature...

- Vector quantity: a vector quantity is a quantity having both a magnitude (number+units) and a direction. Examples of vector quantities are: displacement, velocity, force, acceleration...

Let's analyze now the quantities given:

- work : it has only a magnitude, so it is a scalar

- displacement : it has a magnitude and a direction, so it is a vector

- parallel component of force : it has a magnitude and a direction, so it is a vector

- perpendicular component of force: it has a magnitude and a direction, so it is a vector

2)

The ideal mechanical advantage (IMA) of a machine is the mechanical advantage in absence of frictional forces, so when there are no loss of energy.

For a ramp, the IMA is calculated as

$IMA=\frac{L}{h}$

where

L is the length of the ramp

h is its height

For the ramp in this problem, we have

L = 6.00 m

h = 3.00 m

Therefore, its ideal mechanical advatnage is

$IMA=\frac{6}{3}=2$

Learn more about levers and other machines:

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