Question

A car moves in a line at a speed of 61 m/s. How long will it take the car to move 0.36 km at this speed?

a) 5.90 seconds
b) 5.90 minutes
c) 5.90 hours
d) 5.90 days

Answer 1

The time it takes for a car to move 0.36 km at a speed of 61 m/s is approximately 5.90 seconds, which means the correct answer is (a) 5.90 seconds.

Step-by-step explanation:

To calculate the time it takes for a car to move 0.36 km at a speed of 61 m/s, we first convert the distance from kilometers to meters. Since there are 1,000 meters in a kilometer, 0.36 km is equivalent to 0.36 x 1,000 = 360 meters. The formula to calculate time when distance and speed are known is Time = Distance / Speed. So:

Time = 360 meters / 61 m/s = 5.90163934426 seconds

Rounding this to two decimal places, we get that it takes approximately 5.90 seconds for the car to move 0.36 km at this speed. Therefore, the correct answer is (a) 5.90 seconds.