Problemas
Challenge: A car travels 240 miles south in 3 hours. Find the velocity of the car in mi/hr and m/s
Roztwór
Gael
professionell · Tutor durante 6 años
4.6
(276 Votos)
Respuesta
The velocity of the car is 80 miles per hour (mi/hr) and 35.76 meters per second (m/s).
Explicación
## Step 1The problem involves calculating the velocity of a car. Velocity is a vector quantity, meaning it has both magnitude and direction. In this case, the car is traveling south, so the direction of the velocity is south.## Step 2The formula for velocity is given by:###
where
is the velocity,
is the distance, and
is the time.## Step 3Substitute the given values into the formula. The distance
is 240 miles and the time
is 3 hours.###
## Step 4The problem also asks for the velocity in meters per second (m/s). To convert miles per hour to meters per second, we need to know that 1 mile is approximately 1609.34 meters and 1 hour is 3600 seconds.## Step 5Convert the velocity from miles per hour to meters per second using the conversion factors.###