The image above represents reaction: lift moves up.

To compute for reaction: lift moves up, three essential parameters are needed and these parameters are **mass (m), acceleration (a) **and **acceleration due to gravity (g).**

The formula for calculating reaction: lift moves up:

R = m(a + g)

Where;

R = Reaction

m = Mass

g = acceleration due to gravity

a = Acceleration

Let’s solve an example;

Find the reaction when the mass is 18, acceleration is 21 and acceleration due to gravity is 9.8.

This implies that;

m = Mass = 18

g = acceleration due to gravity = 21

a = Acceleration = 9.8

R = m(a + g)

R = 18(21 + 9.8)

R = 18(30.8)

R = 554.4

Therefore, the **reaction **is **554.4 N.**

**Calculating the Mass when the Reaction, the Acceleration and the Acceleration due to Gravity is Given.**

m = ^{R} / _{a + g}

Where;

m = Mass

R = Reaction

g = acceleration due to gravity

a = Acceleration

Let’s solve an example;

Find the mass when the reaction is 42, the acceleration is 21 and the acceleration due to gravity is 9.8

This implies that;

R = Reaction = 42

g = acceleration due to gravity = 9.8

a = Acceleration = 21

m = ^{R} / _{a + g}

m = ^{42} / _{21 + 9.8}

m = ^{42} / _{30.8}

m = 1.36

Therefore, the **mass **is **1.36.**

**Calculating the Acceleration when the Reaction, the Mass and the Acceleration due to Gravity is Given.**

a = (^{R} / _{m}) – g

Where;

a = Acceleration

R = Reaction

m = Mass

g = acceleration due to gravity

Let’s solve an example;

Find the acceleration when the reaction is 35, mass is 19 and acceleration due to gravity is 9.8.

This implies that;

R = Reaction = 35

m = Mass = 19

g = acceleration due to gravity = 9.8

a = (^{R} / _{m}) – g

a = (^{35} / _{19}) – 9.8

a = 1.84 – 9.8

a = -7.95

Therefore, the **acceleration **is **-7.95.**

**Calculating the Acceleration when the Reaction, the Mass and the Acceleration is Given.**

g = (^{R} / _{m}) – a

Where;

g = acceleration due to gravity

R = Reaction

m = Mass

a = Acceleration

Let’s solve an example;

Find the acceleration due to gravity when the reaction is 40, the mass is 4 and the acceleration is 7.

This implies that;

R = Reaction = 40

m = Mass = 4

a = Acceleration = 7

g = (^{R} / _{m}) – a

g = (^{40} / _{4}) – 7

g = 10 – 7

g = 3

Therefore, the **acceleration due to gravity **is **3.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the reaction: lift moves up.

To get the answer and workings of the reaction: lift moves up using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Motion**** **under **Physics****.**

Now, Click on **Reaction: Lift Moves Up**** **under **Motion**

The screenshot below displays the page or activity to enter your values, to get the answer for the reaction according to the respective parameters which are the **mass**** (m), ****acceleration**** (a)** and **acceleration due to gravity (g).**

Now, enter the values appropriately and accordingly for the parameters as required by the **mass**** (m)**** **is **18, ****acceleration**** (a)** is **21 **and **acceleration due to gravity **is **9.8.**

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the reaction: lift moves up and presents the formula, workings and steps too.