Please allow ads on our site
Please log in to access this content. You will be redirected to the login page shortly.
LoginCar travels with a constant speed of 30 km per hour for 15 minutes. and then quickly speed up to 50 km/h to be maintained for 30 minutes. Then its average speed in km/h would be:
Physics Secondary School in Physics 10 months ago
ong>Answer:
here is your answer plz mark as brainliest
Explanation:
SPEED 1 = 30km/hr ------1
speed 2 = 50km/hr ------2
time 1 = 15 mins -------1
time 2 =30 mins -------2
now first we CONVERT mins to hr
time 1 = 15 mins =0.25hr
and time 2 = 30 mins = 0.5 hr
now we CALCULATE the distance i.e
speed1 = distance1 / time1 ------3
speed 2 = distance 2 / time 2 -------4
therefore distance in the 3rd and 4th cases will be 7.5km and 25 km respectively
now we calculate the average speed which is
average speed = TOTAL distance travelled / total time taken
therefore, total distance =7.5 km +25km=32.5km
and total time = 0.25+0.5=0.75hr
average speed = 32.5/0.75 = 43.3333km/hr
Posted on 17 Nov 2024, this text provides information on Physics related to Secondary School in Physics. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
Take Quiz To Earn Credits!
Turn Your Knowledge into Earnings.
Answers
No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.
