Mohan takes 15 min to go from his home to school and 30 min for the return journey. If the distance between the school and the home is 4.5 km, What is his average velocity and speed?
Answers
Given : Mohan takes 15 min to go from his home to school and 30 min for the return journey. distance between the school and the home is 4.5 km
To Find : average velocity and speed
Solution:
Mohan takes 15 min to go from his home to school and 30 min for the return journey
Total Time = 15 + 30 = 45 min
=> Total Time == 45/60 = 3/4 hrs
Total Distance = 4.5 + 4.5 = 9 km
Total Displacement = 0 km ( as he return back to original position)
Average Velocity = Displacement / Total Time
= 0/(3/4)
= 0
Average Speed = Total Distance / Total Time
= 9/(3/4)
= 12 km /hr
12 * 5/18 m/s
= 10/3
= 3.33 m/s
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Given : Mohan takes 15 min to go from his home to school and 30 min for the return journey. distance between the school and the home is 4.5 km
To Find : average velocity and speed
Solution:
Mohan takes 15 min to go from his home to school and 30 min for the return journey
Total Time = 15 + 30 = 45 min
=> Total Time == 45/60 = 3/4 hrs
Total Distance = 4.5 + 4.5 = 9 km
Total Displacement = 0 km ( as he return back to original position)
Average Velocity = Displacement / Total Time
= 0/(3/4)
= 0
Average Speed = Total Distance / Total Time
= 9/(3/4)
= 12 km /hr
12 * 5/18 m/s
= 10/3
= 3.33 m/s
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