STEEMKIDS COMMUNITY PHYSICS LESSON|| scalars and vectors|| written by @madilyn02|| 10% to steemkidss

Hello friends, this is my participation in the physics lesson in the community that was provided by @gentlesun. Below you can find my answers to all the homework questions that I gave to the best of my ability.

What is vector and scalar quantity

The vector quantities are the quantities with number values and magnitude.

While the scalar quantities are ones with no direction but has a number value and magnitude.

Give 4 examples in each

Scaler quantities

• Distance
• Speed
• Mass
• Time

Vector quantities

• Force
• Velocity
• Displacement
• Acceleration

What is resultant vector

Resultant vector is the result gotten from the combination of two or more vectors.

When can Pythagoras theorem be use in finding resultant vector of forces

Pythagoras theorem is only used when finding vectors that are inclined at 90° angle.

In general, vectors are added using how many methods, mention them

Two methods are used in summing up vectors and they are:

• The triangle method and
• The parallelogram method

If a man works 30km Eastward and then turn and work 45km Westward, what is his resultant vector?

Solution
C² = a² + b²
C² = 30²km + 45²km
C² = 900 + 2025
C² = 2925
_{Finding the square root of 2925}

C ~54.083

---

Thank you so much @gentlesun for this physics lesson. I'm sorry if I didn't get the answers correctly.

I invite @bossj23, @chimeroselam, @fortwis09 to submit their assignments.

Goodbye friends, see you all soonest.