All Solutions

Exercise 1

Step 1

1 of 5

In this problem, we classify if the given quantity is scalar or vector.

Step 2

2 of 5

Part A.

For this part, the quantity is the time taken to run a 100-m dash. Time is a $textbf{scalar}$ quantity.

Step 3

3 of 5

Part B.

For this part, the quantity is the displacement after running the 100-m dash. Displacement is a $textbf{vector}$ quantity.

Step 4

4 of 5

Part C.

For this part, the quantity is the average velocity while running. Velocity is a $textbf{vector}$ quantity.

Step 5

5 of 5

Part D.

For this part, the quantity is the average speed while running. Speed is a $textbf{scalar}$ quantity.

Exercise 2

Step 1

1 of 3

In this problem, we rank, in increasing order, the magnitude of the given vectors.

Step 2

2 of 3

The magnitude is the length of the vector. Visually, we can see that the rank in increasing order is
$$
boxed{ B < C < A < D }
$$

Result

3 of 3

$$
B < C < A < D
$$

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