If a car accelerates from rest at a rate of 2 m/s², what is its velocity after 5

₹0.0

Question: If a car accelerates from rest at a rate of 2 m/s², what is its velocity after 5 seconds?

Options:

Correct Answer: 10 m/s

Solution:

Using the formula v = u + at, where u = 0, a = 2 m/s², and t = 5 s, we get v = 0 + (2)(5) = 10 m/s.

If a car accelerates from rest at a rate of 2 m/s², what is its velocity after 5 seconds?

If a car accelerates from rest at a rate of 2 m/s², what is its velocity after 5 seconds?

Correct Answer: 10 m/s

Step 1: Identify the initial velocity (u). Since the car starts from rest, u = 0 m/s.
Step 2: Identify the acceleration (a). The problem states that the car accelerates at a rate of 2 m/s², so a = 2 m/s².
Step 3: Identify the time (t). The problem states that the time is 5 seconds, so t = 5 s.
Step 4: Use the formula for final velocity (v), which is v = u + at.
Step 5: Substitute the values into the formula: v = 0 + (2 m/s² * 5 s).
Step 6: Calculate the result: v = 0 + 10 m/s = 10 m/s.
Step 7: Conclude that the velocity of the car after 5 seconds is 10 m/s.

Kinematics – The study of motion, specifically how velocity, acceleration, and time relate to each other.
Equations of Motion – Using the formula v = u + at to calculate final velocity based on initial velocity, acceleration, and time.