Question

a body covers half of its journey 40 metre per second and the next half 50 metre per second average speed is​

Answer 1

Answer:

speed= 45m/s

Explanation:

solution,

distance travelled (d)= 50+40 m= 90 m

time taken(t)=1+1sec=2sec

speed=?

now,

speed= d/t

         = 90/2

         =45

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