Question

Velocity: Heather and Matthew take 45 s to

Answer 1

Answer:

The velocity of Heather and Matthew is 1.6 m/s eastward.

Explanation:

Velocity: This is the time rate of displacement. The S.I unit of velocity is m/s.

Velocity is a vector quantity because it can be represented by  magnitude and as well as direction. The mathematical expression for velocity is given below

V = d/t...................... Equation 1

Where V = velocity of Heather and Matthew, d = displacement of heather and Matthew, t = time.

Given: d = 72 m eastward, t = 45 s.

Substituting these values into equation 1

V = 72/45

V = 1.6 m/s eastward.

Thus the velocity of Heather and Matthew is 1.6 m/s eastward.