Asked by Iworlock
A car travels 120 meters in one direction in 20 seconds. Then the car returns ¾ of the way back in 10 seconds.
a) Calculate the average speed of the car for the first part of the trip.
b) Find the average velocity of the car.
a) Calculate the average speed of the car for the first part of the trip.
b) Find the average velocity of the car.
Answers
Answered by
Henry
a. d = 120 + (3/4)*120 = 120 + 90=210 m.
r = d/t = 210m/30s. = 7 m/s. = Avg.
speed.
b. V = (120-90)/30 = 1 m/s. = Average
velocity.
r = d/t = 210m/30s. = 7 m/s. = Avg.
speed.
b. V = (120-90)/30 = 1 m/s. = Average
velocity.
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