Question

1. It takes you 30 minutes to walk with an average velocity of 2.0 m/s south to school. What is your displacement?

2. A child is pushing a shopping cart at a speed of 1.5 m/s. How long will it take this child to push the cart down an aisle with a length of 9.3 m?

Answer 1

To find the displacement, multiply average velocity by time. The displacement is 3600 meters south. To find the time taken, divide the distance by the speed. The time taken is 6.2 seconds.

Step-by-step explanation:

To calculate the displacement, we need to multiply the average velocity by the time taken. In the first question, your average velocity is 2.0 m/s south and the time taken is 30 minutes. We need to convert the time to seconds by multiplying it by 60, so 30 minutes becomes 1800 seconds. Now, we can multiply the average velocity by the time to get the displacement: 2.0 m/s * 1800 s = 3600 meters south.

In the second question, we need to calculate the time taken. The speed is given as 1.5 m/s and the distance is 9.3 m. We use the formula: time = distance / speed. Plugging in the values, we get: time = 9.3 m / 1.5 m/s = 6.2 seconds.