What is the acceleration (in m/s²) of a car running at 55 kilometers per hour then suddenly slams the brake and stopped within 2.75 seconds? (Hint: Covert km/h to m/s)
Share
What is the acceleration (in m/s²) of a car running at 55 kilometers per hour then suddenly slams the brake and stopped within 2.75 seconds? (Hint: Covert km/h to m/s)
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
The acceleration of the car is -19.8 m/s².
To calculate this, first convert the speed from kilometers per hour to meters per second (1 km/h = 0.2778 m/s):
55 km/h = 55 * 0.2778 m/s = 15.27 m/s
Next, use the equation a = (Vf - Vi) / t, where a is the acceleration, Vf is the final velocity, Vi is the initial velocity, and t is the time. Since the car stopped, the final velocity is 0 m/s.
a = (0 - 15.27) / 2.75 = -19.8 m/s²
Explanation:
Hayop maka Wala Ng utak btw pa Brainliest po