Question

Two bodies of equal masses move with uniform velocity vand4v,respectively.find the ratio of their kinetic energy

Answer 1

kinetic energy - energy possessed due to virtue of its motion

si unit is jule

ke=1/2mv^2

mass of body(1)=mass of body(2)

m=m

now ratio

1/2mv^2÷1/2mv^2

1/2×m×v×v × 2/1×1/m×1/4v×1/4v

1/16

1:16

hence ratio is 1:16