During the same time, a truck traveling at a speed of 54 km / h traveled 750 m, and a passenger car 1.5 km. What is the speed of a car?

Using the speed at which the truck was moving and the distance it traveled, we calculate the time of its movement. For this we use the formula for speed.
v = S / t,
v – speed,
S – distance,
t is the time.
From this formula, we express the travel time of the bus (t):
t = S / v,
let’s make a calculation:
take into account that 54 (km / h) = 54 * 1000/3600 = 15 (m / s),
t = S / v = 750/15 = 50 (s).
Let’s determine the speed of a car,
take into account that 1.5 (km) = 1.5 * 1000 = 1500 (m),
v = S / t = 1500/50 = 30 (m / s),
Answer: v = 30 (m / s).