Nancy asks…PHYSICS HELP! PLEASE ANSWER ITS VERY IMPORTANT FOR MY TOMORROW EXAM?I tried hard to solve this 3 questions but unfortunately I couldn't. If someone tell me how to solve them I would be more than happy
1) A man takes a trip from city A to cit B. He drives at 90 km/h for 30 min. then he drives at 100 km/h for 45 min. He then takes a tea break for 15 min. at a station and goes on his journey, driving at 80 km/h for 1.5 hours to arrive at his destination. What is the average speed