Question

What is mechanical advantage?

a
The number of times the machine adds the effort force
b
The number of times the machine multiples the effort force
c
None of the above
d
The number of times the machine divides the effort force
Question 24 (1 point)
A mover load a box into the back of a moving truck by pushing it up a ramp. The ramp is 4.0 m long and the back of the truck is 1.5 m high. What is the mechanical advantage of the ramp?

Mechanical Advantage = length of the ramp/height of the ramp

a
2.7
b
5.5
c
0.4
d
6

Answer 1

**What is mechanical advantage?**

The correct answer is:
**b** The number of times the machine multiples the effort force.

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**A mover loads a box into the back of a moving truck by pushing it up a ramp. The ramp is 4.0 m long and the back of the truck is 1.5 m high. What is the mechanical advantage of the ramp?**

To calculate the mechanical advantage (MA) of the ramp, we can use the formula:

\[
\text{Mechanical Advantage} = \frac{\text{length of the ramp}}{\text{height of the ramp}}
\]

Substituting the given values:

\[
\text{MA} = \frac{4.0 \, \text{m}}{1.5 \, \text{m}} = \frac{4.0}{1.5} \approx 2.67
\]

Rounding to one decimal place gives us approximately 2.7.

The correct answer is:
**a** 2.7