Question

answer please emergency!

Answer 1

let the mass of dog be m
so mass of horse is 10m
velocity be v
now k.e. of horse/k.e. of dog
=1/2×10m×v^2/1/2×m×v^2
=10/1
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Answer 2

let the mass of the horse be 10 x and mass of the dog be x ,also the speed of dog and horse be y
then as, KE,=1/2*mass*(velocity)^2
so ,KE of horse =1/2*10m*v^2
and, KE of dog=1/2*m*v^2
ratio=10mv^2/mv^2
=10:1
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