Question

A particle Travels first half distance with uniform speed 40 metre and the next half distance with uniform speed of 30 metre calculate average speed​

Answer 1

Step-by-step explanation:

Let total distance be 2D.

Given, D=30t

1

=60t

2

or, t

1

=

30

D

, t

2

=

60

D

Thus, average speed=

t

1

+t

2

2D

=

30

D

+

60

D

2D

=40 m/s

Answer 2

Answer:

40 ms

Step-by-step explanation:

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