the car is moving along a straight line from O to P. distance 360m 9 second and returns from P to Q covering a distance 120m in 3s. What are average speed of the car is going (a) from O to P. (b) from O to P and back Q.
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Answer
Displacement from O to P=360m
Time taken from O to P=18sec
Velocity of car =
Time
Displacement
=
18
360m
Avg. Velocity of car (O to P)=20ms
−1
Time taken from P to Q=6sec
Total time taken to move from O to P and back at Q,
T
′
=16+6=24
Displacement from P to Q=240m
Average speed of car from P to Q=
24sec
240m
=10ms
−1
Answered by
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Answer:
a.From O to P
AVG Speed - total D
total T
AVG Speed - 40
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