Starting from a stationary position, a person paddles his bicycle to attain a velocity of 20 m/s in 10 seconds. Calculate the acceleration (in m/s2) of the bicycle.
Show answer & explanation
Correct answer: C
Explanation
Correct Answer:
Option 3: 2
Explanation:
In this question, the initial velocity (u) is given as 0 m/s, the final velocity (v) as 20 m/s, and the time (t) as 10 seconds. The formula for acceleration is:
a = (v - u) / t
Substituting the values, we get a = (20 - 0) / 10 = 2 m/s². This means that the velocity of the bicycle is increasing at a rate of 2 m/s every second. This is an example of Uniformly Accelerated Motion, which is a fundamental principle in physics.
Potential Questions for Upcoming Exams:
Question: What is the SI unit of acceleration?
Answer: m/s²
Question: What is the formula for velocity?
Answer: v = u + at
Question: What is uniform motion?
Answer: Uniform velocity
Question: Who formulated the three laws of motion?
Answer: Newton