Question

show instructions question 18 (1 point) what is the velocity of a car that traveled total of 75 km north in 1.5 hours? a 50km/hr s b 60km/hr n c 50km/hr d 50km/hr n

Explanation:

Step1: Recall the formula for velocity

Velocity is defined as the displacement divided by time, and since displacement has direction, velocity will also have direction. The formula is \( v=\frac{d}{t} \), where \( d \) is displacement and \( t \) is time.

Step2: Substitute the given values

We are given that the displacement \( d = 75\space km\) (north) and time \( t=1.5\space hours\). Substituting these values into the formula: \( v=\frac{75\space km}{1.5\space h} \)

Step3: Calculate the magnitude of velocity

\( \frac{75}{1.5}=50 \), so the magnitude of velocity is \( 50\space km/h \). And the direction is north (as given in the displacement).

Answer:

d. 50km/hr N